Home / 672,225.27-927,613.78-385,739.20

Finding the Fourth Proportional to 672,225.27, 927,613.78 and 385,739.20

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Solution

The fourth proportional to 672,225.27, 927,613.78 and 385,739.20 is: 532,287.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,225.27 : 927,613.78 = 385,739.20 : x
  2. Step 2: Convert to fraction form
    672,225.27/927,613.78 = 385,739.20/x
  3. Step 3: Cross multiply
    672,225.27x = 927,613.78 × 385,739.20
  4. Step 4: Simplify right side
    672,225.27x = 357,816,997,406.18
  5. Step 5: Solve for x
    x = 357,816,997,406.18/672,225.27
  6. Step 6: Final answer
    x = 532,287.33

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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.