Home / 648,001.45-972,002.18-648,001.45

Finding the Fourth Proportional to 648,001.45, 972,002.18 and 648,001.45

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Solution

The fourth proportional to 648,001.45, 972,002.18 and 648,001.45 is: 972,002.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,001.45 : 972,002.18 = 648,001.45 : x
  2. Step 2: Convert to fraction form
    648,001.45/972,002.18 = 648,001.45/x
  3. Step 3: Cross multiply
    648,001.45x = 972,002.18 × 648,001.45
  4. Step 4: Simplify right side
    648,001.45x = 629,858,818,803.15
  5. Step 5: Solve for x
    x = 629,858,818,803.15/648,001.45
  6. Step 6: Final answer
    x = 972,002.18

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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.