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Finding the Fourth Proportional to 665,051.10, 997,576.65 and 487,904.10

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Solution

The fourth proportional to 665,051.10, 997,576.65 and 487,904.10 is: 731,856.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,051.10 : 997,576.65 = 487,904.10 : x
  2. Step 2: Convert to fraction form
    665,051.10/997,576.65 = 487,904.10/x
  3. Step 3: Cross multiply
    665,051.10x = 997,576.65 × 487,904.10
  4. Step 4: Simplify right side
    665,051.10x = 486,721,737,599.27
  5. Step 5: Solve for x
    x = 486,721,737,599.27/665,051.10
  6. Step 6: Final answer
    x = 731,856.15

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Double scale
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Similar ratio
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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.