Home / 787,145.60-1,182,030.60-432,414.20

Finding the Fourth Proportional to 787,145.60, 1,182,030.60 and 432,414.20

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Solution

The fourth proportional to 787,145.60, 1,182,030.60 and 432,414.20 is: 649,342.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,145.60 : 1,182,030.60 = 432,414.20 : x
  2. Step 2: Convert to fraction form
    787,145.60/1,182,030.60 = 432,414.20/x
  3. Step 3: Cross multiply
    787,145.60x = 1,182,030.60 × 432,414.20
  4. Step 4: Simplify right side
    787,145.60x = 511,126,816,274.52
  5. Step 5: Solve for x
    x = 511,126,816,274.52/787,145.60
  6. Step 6: Final answer
    x = 649,342.15

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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.