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Finding the Fourth Proportional to 500,427.64, 750,326.10 and 424,552.69

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Solution

The fourth proportional to 500,427.64, 750,326.10 and 424,552.69 is: 636,561.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,427.64 : 750,326.10 = 424,552.69 : x
  2. Step 2: Convert to fraction form
    500,427.64/750,326.10 = 424,552.69/x
  3. Step 3: Cross multiply
    500,427.64x = 750,326.10 × 424,552.69
  4. Step 4: Simplify right side
    500,427.64x = 318,552,964,132.21
  5. Step 5: Solve for x
    x = 318,552,964,132.21/500,427.64
  6. Step 6: Final answer
    x = 636,561.49

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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.