Home / 648,001.55-972,002.33-363,399.95

Finding the Fourth Proportional to 648,001.55, 972,002.33 and 363,399.95

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Solution

The fourth proportional to 648,001.55, 972,002.33 and 363,399.95 is: 545,099.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,001.55 : 972,002.33 = 363,399.95 : x
  2. Step 2: Convert to fraction form
    648,001.55/972,002.33 = 363,399.95/x
  3. Step 3: Cross multiply
    648,001.55x = 972,002.33 × 363,399.95
  4. Step 4: Simplify right side
    648,001.55x = 353,225,596,304.88
  5. Step 5: Solve for x
    x = 353,225,596,304.88/648,001.55
  6. Step 6: Final answer
    x = 545,099.93

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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.