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Finding the Fourth Proportional to 670,737.10, 1,007,272.05 and 355,809.10

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Solution

The fourth proportional to 670,737.10, 1,007,272.05 and 355,809.10 is: 534,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,737.10 : 1,007,272.05 = 355,809.10 : x
  2. Step 2: Convert to fraction form
    670,737.10/1,007,272.05 = 355,809.10/x
  3. Step 3: Cross multiply
    670,737.10x = 1,007,272.05 × 355,809.10
  4. Step 4: Simplify right side
    670,737.10x = 358,396,561,565.66
  5. Step 5: Solve for x
    x = 358,396,561,565.66/670,737.10
  6. Step 6: Final answer
    x = 534,332.40

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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.