Home / 692,001.70-1,038,002.55-479,425.30

Finding the Fourth Proportional to 692,001.70, 1,038,002.55 and 479,425.30

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Solution

The fourth proportional to 692,001.70, 1,038,002.55 and 479,425.30 is: 719,137.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,001.70 : 1,038,002.55 = 479,425.30 : x
  2. Step 2: Convert to fraction form
    692,001.70/1,038,002.55 = 479,425.30/x
  3. Step 3: Cross multiply
    692,001.70x = 1,038,002.55 × 479,425.30
  4. Step 4: Simplify right side
    692,001.70x = 497,644,683,934.52
  5. Step 5: Solve for x
    x = 497,644,683,934.52/692,001.70
  6. Step 6: Final answer
    x = 719,137.95

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.