Home / 708,138.28-977,218.47-385,851.04

Finding the Fourth Proportional to 708,138.28, 977,218.47 and 385,851.04

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Solution

The fourth proportional to 708,138.28, 977,218.47 and 385,851.04 is: 532,467.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,138.28 : 977,218.47 = 385,851.04 : x
  2. Step 2: Convert to fraction form
    708,138.28/977,218.47 = 385,851.04/x
  3. Step 3: Cross multiply
    708,138.28x = 977,218.47 × 385,851.04
  4. Step 4: Simplify right side
    708,138.28x = 377,060,762,956.71
  5. Step 5: Solve for x
    x = 377,060,762,956.71/708,138.28
  6. Step 6: Final answer
    x = 532,467.70

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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.