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Finding the Fourth Proportional to 657,483.20, 986,613.60 and 433,491.20

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Solution

The fourth proportional to 657,483.20, 986,613.60 and 433,491.20 is: 650,493.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,483.20 : 986,613.60 = 433,491.20 : x
  2. Step 2: Convert to fraction form
    657,483.20/986,613.60 = 433,491.20/x
  3. Step 3: Cross multiply
    657,483.20x = 986,613.60 × 433,491.20
  4. Step 4: Simplify right side
    657,483.20x = 427,688,313,400.32
  5. Step 5: Solve for x
    x = 427,688,313,400.32/657,483.20
  6. Step 6: Final answer
    x = 650,493.14

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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.