Home / 708,089.22-977,150.82-385,801.68

Finding the Fourth Proportional to 708,089.22, 977,150.82 and 385,801.68

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Solution

The fourth proportional to 708,089.22, 977,150.82 and 385,801.68 is: 532,399.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,089.22 : 977,150.82 = 385,801.68 : x
  2. Step 2: Convert to fraction form
    708,089.22/977,150.82 = 385,801.68/x
  3. Step 3: Cross multiply
    708,089.22x = 977,150.82 × 385,801.68
  4. Step 4: Simplify right side
    708,089.22x = 376,986,427,969.38
  5. Step 5: Solve for x
    x = 376,986,427,969.38/708,089.22
  6. Step 6: Final answer
    x = 532,399.61

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Double scale
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Similar ratio
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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.