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Finding the Fourth Proportional to 656,883.90, 985,325.85 and 550,595.70

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Solution

The fourth proportional to 656,883.90, 985,325.85 and 550,595.70 is: 825,893.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,883.90 : 985,325.85 = 550,595.70 : x
  2. Step 2: Convert to fraction form
    656,883.90/985,325.85 = 550,595.70/x
  3. Step 3: Cross multiply
    656,883.90x = 985,325.85 × 550,595.70
  4. Step 4: Simplify right side
    656,883.90x = 542,516,176,108.85
  5. Step 5: Solve for x
    x = 542,516,176,108.85/656,883.90
  6. Step 6: Final answer
    x = 825,893.55

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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.