Home / 902,115.40-1,353,173.10-403,479.40

Finding the Fourth Proportional to 902,115.40, 1,353,173.10 and 403,479.40

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Solution

The fourth proportional to 902,115.40, 1,353,173.10 and 403,479.40 is: 605,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,115.40 : 1,353,173.10 = 403,479.40 : x
  2. Step 2: Convert to fraction form
    902,115.40/1,353,173.10 = 403,479.40/x
  3. Step 3: Cross multiply
    902,115.40x = 1,353,173.10 × 403,479.40
  4. Step 4: Simplify right side
    902,115.40x = 545,977,470,484.14
  5. Step 5: Solve for x
    x = 545,977,470,484.14/902,115.40
  6. Step 6: Final answer
    x = 605,219.10

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.