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Finding the Fourth Proportional to 434,715.60, 652,073.40 and 400,501.20

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Solution

The fourth proportional to 434,715.60, 652,073.40 and 400,501.20 is: 600,751.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,715.60 : 652,073.40 = 400,501.20 : x
  2. Step 2: Convert to fraction form
    434,715.60/652,073.40 = 400,501.20/x
  3. Step 3: Cross multiply
    434,715.60x = 652,073.40 × 400,501.20
  4. Step 4: Simplify right side
    434,715.60x = 261,156,179,188.08
  5. Step 5: Solve for x
    x = 261,156,179,188.08/434,715.60
  6. Step 6: Final answer
    x = 600,751.80

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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.