Home / 747,200.70-1,120,801.05-658,554.30

Finding the Fourth Proportional to 747,200.70, 1,120,801.05 and 658,554.30

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Solution

The fourth proportional to 747,200.70, 1,120,801.05 and 658,554.30 is: 987,831.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,200.70 : 1,120,801.05 = 658,554.30 : x
  2. Step 2: Convert to fraction form
    747,200.70/1,120,801.05 = 658,554.30/x
  3. Step 3: Cross multiply
    747,200.70x = 1,120,801.05 × 658,554.30
  4. Step 4: Simplify right side
    747,200.70x = 738,108,350,922.02
  5. Step 5: Solve for x
    x = 738,108,350,922.02/747,200.70
  6. Step 6: Final answer
    x = 987,831.45

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Double scale
Find fourth proportional to 747,201.70, 1,120,802.55 and 658,555.30
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.