Home / 708,126.40-977,202.08-385,839.20

Finding the Fourth Proportional to 708,126.40, 977,202.08 and 385,839.20

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Solution

The fourth proportional to 708,126.40, 977,202.08 and 385,839.20 is: 532,451.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,126.40 : 977,202.08 = 385,839.20 : x
  2. Step 2: Convert to fraction form
    708,126.40/977,202.08 = 385,839.20/x
  3. Step 3: Cross multiply
    708,126.40x = 977,202.08 × 385,839.20
  4. Step 4: Simplify right side
    708,126.40x = 377,042,868,785.54
  5. Step 5: Solve for x
    x = 377,042,868,785.54/708,126.40
  6. Step 6: Final answer
    x = 532,451.37

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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.