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Finding the Fourth Proportional to 647,473.10, 971,209.65 and 498,001.10

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Solution

The fourth proportional to 647,473.10, 971,209.65 and 498,001.10 is: 747,001.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,473.10 : 971,209.65 = 498,001.10 : x
  2. Step 2: Convert to fraction form
    647,473.10/971,209.65 = 498,001.10/x
  3. Step 3: Cross multiply
    647,473.10x = 971,209.65 × 498,001.10
  4. Step 4: Simplify right side
    647,473.10x = 483,663,474,030.62
  5. Step 5: Solve for x
    x = 483,663,474,030.62/647,473.10
  6. Step 6: Final answer
    x = 747,001.65

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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.