Home / 712,076.80-1,068,115.20-658,009.60

Finding the Fourth Proportional to 712,076.80, 1,068,115.20 and 658,009.60

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Solution

The fourth proportional to 712,076.80, 1,068,115.20 and 658,009.60 is: 987,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,076.80 : 1,068,115.20 = 658,009.60 : x
  2. Step 2: Convert to fraction form
    712,076.80/1,068,115.20 = 658,009.60/x
  3. Step 3: Cross multiply
    712,076.80x = 1,068,115.20 × 658,009.60
  4. Step 4: Simplify right side
    712,076.80x = 702,830,055,505.92
  5. Step 5: Solve for x
    x = 702,830,055,505.92/712,076.80
  6. Step 6: Final answer
    x = 987,014.40

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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.