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Finding the Fourth Proportional to 424,762.38, 636,396.08 and 399,477.47

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Solution

The fourth proportional to 424,762.38, 636,396.08 and 399,477.47 is: 598,513.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,762.38 : 636,396.08 = 399,477.47 : x
  2. Step 2: Convert to fraction form
    424,762.38/636,396.08 = 399,477.47/x
  3. Step 3: Cross multiply
    424,762.38x = 636,396.08 × 399,477.47
  4. Step 4: Simplify right side
    424,762.38x = 254,225,890,776.95
  5. Step 5: Solve for x
    x = 254,225,890,776.95/424,762.38
  6. Step 6: Final answer
    x = 598,513.20

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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.