Home / 648,016.30-972,024.45-482,128.30

Finding the Fourth Proportional to 648,016.30, 972,024.45 and 482,128.30

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Solution

The fourth proportional to 648,016.30, 972,024.45 and 482,128.30 is: 723,192.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,016.30 : 972,024.45 = 482,128.30 : x
  2. Step 2: Convert to fraction form
    648,016.30/972,024.45 = 482,128.30/x
  3. Step 3: Cross multiply
    648,016.30x = 972,024.45 × 482,128.30
  4. Step 4: Simplify right side
    648,016.30x = 468,640,495,636.94
  5. Step 5: Solve for x
    x = 468,640,495,636.94/648,016.30
  6. Step 6: Final answer
    x = 723,192.45

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Half scale
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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.