Home / 648,403.23-972,604.86-332,658.75

Finding the Fourth Proportional to 648,403.23, 972,604.86 and 332,658.75

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Solution

The fourth proportional to 648,403.23, 972,604.86 and 332,658.75 is: 498,988.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,403.23 : 972,604.86 = 332,658.75 : x
  2. Step 2: Convert to fraction form
    648,403.23/972,604.86 = 332,658.75/x
  3. Step 3: Cross multiply
    648,403.23x = 972,604.86 × 332,658.75
  4. Step 4: Simplify right side
    648,403.23x = 323,545,516,971.53
  5. Step 5: Solve for x
    x = 323,545,516,971.53/648,403.23
  6. Step 6: Final answer
    x = 498,988.13

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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.