Home / 753,480.96-1,130,046.24-280,389.12

Finding the Fourth Proportional to 753,480.96, 1,130,046.24 and 280,389.12

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Solution

The fourth proportional to 753,480.96, 1,130,046.24 and 280,389.12 is: 420,518.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,480.96 : 1,130,046.24 = 280,389.12 : x
  2. Step 2: Convert to fraction form
    753,480.96/1,130,046.24 = 280,389.12/x
  3. Step 3: Cross multiply
    753,480.96x = 1,130,046.24 × 280,389.12
  4. Step 4: Simplify right side
    753,480.96x = 316,852,670,792.91
  5. Step 5: Solve for x
    x = 316,852,670,792.91/753,480.96
  6. Step 6: Final answer
    x = 420,518.48

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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.