Home / 674,239.83-930,479.25-387,760.14

Finding the Fourth Proportional to 674,239.83, 930,479.25 and 387,760.14

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Solution

The fourth proportional to 674,239.83, 930,479.25 and 387,760.14 is: 535,125.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,239.83 : 930,479.25 = 387,760.14 : x
  2. Step 2: Convert to fraction form
    674,239.83/930,479.25 = 387,760.14/x
  3. Step 3: Cross multiply
    674,239.83x = 930,479.25 × 387,760.14
  4. Step 4: Simplify right side
    674,239.83x = 360,802,764,247.10
  5. Step 5: Solve for x
    x = 360,802,764,247.10/674,239.83
  6. Step 6: Final answer
    x = 535,125.26

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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.