Home / 723,728.40-1,085,592.60-657,243.60

Finding the Fourth Proportional to 723,728.40, 1,085,592.60 and 657,243.60

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Solution

The fourth proportional to 723,728.40, 1,085,592.60 and 657,243.60 is: 985,865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,728.40 : 1,085,592.60 = 657,243.60 : x
  2. Step 2: Convert to fraction form
    723,728.40/1,085,592.60 = 657,243.60/x
  3. Step 3: Cross multiply
    723,728.40x = 1,085,592.60 × 657,243.60
  4. Step 4: Simplify right side
    723,728.40x = 713,498,788,557.36
  5. Step 5: Solve for x
    x = 713,498,788,557.36/723,728.40
  6. Step 6: Final answer
    x = 985,865.40

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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.