Home / 638,468.40-957,702.60-283,105.20

Finding the Fourth Proportional to 638,468.40, 957,702.60 and 283,105.20

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Solution

The fourth proportional to 638,468.40, 957,702.60 and 283,105.20 is: 424,657.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,468.40 : 957,702.60 = 283,105.20 : x
  2. Step 2: Convert to fraction form
    638,468.40/957,702.60 = 283,105.20/x
  3. Step 3: Cross multiply
    638,468.40x = 957,702.60 × 283,105.20
  4. Step 4: Simplify right side
    638,468.40x = 271,130,586,113.52
  5. Step 5: Solve for x
    x = 271,130,586,113.52/638,468.40
  6. Step 6: Final answer
    x = 424,657.80

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Similar ratio
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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.