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Finding the Fourth Proportional to 649,229.10, 973,843.65 and 639,897.90

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Solution

The fourth proportional to 649,229.10, 973,843.65 and 639,897.90 is: 959,846.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,229.10 : 973,843.65 = 639,897.90 : x
  2. Step 2: Convert to fraction form
    649,229.10/973,843.65 = 639,897.90/x
  3. Step 3: Cross multiply
    649,229.10x = 973,843.65 × 639,897.90
  4. Step 4: Simplify right side
    649,229.10x = 623,160,506,563.34
  5. Step 5: Solve for x
    x = 623,160,506,563.34/649,229.10
  6. Step 6: Final answer
    x = 959,846.85

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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.