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Finding the Fourth Proportional to 497,015.60, 745,523.40 and 434,807.60

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Solution

The fourth proportional to 497,015.60, 745,523.40 and 434,807.60 is: 652,211.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,015.60 : 745,523.40 = 434,807.60 : x
  2. Step 2: Convert to fraction form
    497,015.60/745,523.40 = 434,807.60/x
  3. Step 3: Cross multiply
    497,015.60x = 745,523.40 × 434,807.60
  4. Step 4: Simplify right side
    497,015.60x = 324,159,240,297.84
  5. Step 5: Solve for x
    x = 324,159,240,297.84/497,015.60
  6. Step 6: Final answer
    x = 652,211.40

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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.