Home / 730,510.60-1,095,765.90-431,134.60

Finding the Fourth Proportional to 730,510.60, 1,095,765.90 and 431,134.60

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Solution

The fourth proportional to 730,510.60, 1,095,765.90 and 431,134.60 is: 646,701.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,510.60 : 1,095,765.90 = 431,134.60 : x
  2. Step 2: Convert to fraction form
    730,510.60/1,095,765.90 = 431,134.60/x
  3. Step 3: Cross multiply
    730,510.60x = 1,095,765.90 × 431,134.60
  4. Step 4: Simplify right side
    730,510.60x = 472,422,592,990.14
  5. Step 5: Solve for x
    x = 472,422,592,990.14/730,510.60
  6. Step 6: Final answer
    x = 646,701.90

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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.