Home / 648,031.20-972,046.80-582,712.80

Finding the Fourth Proportional to 648,031.20, 972,046.80 and 582,712.80

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Solution

The fourth proportional to 648,031.20, 972,046.80 and 582,712.80 is: 874,069.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,031.20 : 972,046.80 = 582,712.80 : x
  2. Step 2: Convert to fraction form
    648,031.20/972,046.80 = 582,712.80/x
  3. Step 3: Cross multiply
    648,031.20x = 972,046.80 × 582,712.80
  4. Step 4: Simplify right side
    648,031.20x = 566,424,112,559.04
  5. Step 5: Solve for x
    x = 566,424,112,559.04/648,031.20
  6. Step 6: Final answer
    x = 874,069.20

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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.