Home / 728,117.20-1,092,175.80-651,134.80

Finding the Fourth Proportional to 728,117.20, 1,092,175.80 and 651,134.80

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Solution

The fourth proportional to 728,117.20, 1,092,175.80 and 651,134.80 is: 976,702.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,117.20 : 1,092,175.80 = 651,134.80 : x
  2. Step 2: Convert to fraction form
    728,117.20/1,092,175.80 = 651,134.80/x
  3. Step 3: Cross multiply
    728,117.20x = 1,092,175.80 × 651,134.80
  4. Step 4: Simplify right side
    728,117.20x = 711,153,671,097.84
  5. Step 5: Solve for x
    x = 711,153,671,097.84/728,117.20
  6. Step 6: Final answer
    x = 976,702.20

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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.