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Finding the Fourth Proportional to 648,003.10, 972,004.65 and 529,807.90

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Solution

The fourth proportional to 648,003.10, 972,004.65 and 529,807.90 is: 794,711.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,003.10 : 972,004.65 = 529,807.90 : x
  2. Step 2: Convert to fraction form
    648,003.10/972,004.65 = 529,807.90/x
  3. Step 3: Cross multiply
    648,003.10x = 972,004.65 × 529,807.90
  4. Step 4: Simplify right side
    648,003.10x = 514,975,742,406.74
  5. Step 5: Solve for x
    x = 514,975,742,406.74/648,003.10
  6. Step 6: Final answer
    x = 794,711.85

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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.