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Finding the Fourth Proportional to 672,727.93, 928,589.50 and 400,881.10

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Solution

The fourth proportional to 672,727.93, 928,589.50 and 400,881.10 is: 553,349.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,727.93 : 928,589.50 = 400,881.10 : x
  2. Step 2: Convert to fraction form
    672,727.93/928,589.50 = 400,881.10/x
  3. Step 3: Cross multiply
    672,727.93x = 928,589.50 × 400,881.10
  4. Step 4: Simplify right side
    672,727.93x = 372,253,975,565.50
  5. Step 5: Solve for x
    x = 372,253,975,565.50/672,727.93
  6. Step 6: Final answer
    x = 553,349.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.