Home / 554,126.82-831,190.23-427,951.10

Finding the Fourth Proportional to 554,126.82, 831,190.23 and 427,951.10

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Solution

The fourth proportional to 554,126.82, 831,190.23 and 427,951.10 is: 641,926.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,126.82 : 831,190.23 = 427,951.10 : x
  2. Step 2: Convert to fraction form
    554,126.82/831,190.23 = 427,951.10/x
  3. Step 3: Cross multiply
    554,126.82x = 831,190.23 × 427,951.10
  4. Step 4: Simplify right side
    554,126.82x = 355,708,773,545.06
  5. Step 5: Solve for x
    x = 355,708,773,545.06/554,126.82
  6. Step 6: Final answer
    x = 641,926.65

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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.