Home / 787,652.60-1,180,604.10-432,921.20

Finding the Fourth Proportional to 787,652.60, 1,180,604.10 and 432,921.20

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Solution

The fourth proportional to 787,652.60, 1,180,604.10 and 432,921.20 is: 648,900.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,652.60 : 1,180,604.10 = 432,921.20 : x
  2. Step 2: Convert to fraction form
    787,652.60/1,180,604.10 = 432,921.20/x
  3. Step 3: Cross multiply
    787,652.60x = 1,180,604.10 × 432,921.20
  4. Step 4: Simplify right side
    787,652.60x = 511,108,543,696.92
  5. Step 5: Solve for x
    x = 511,108,543,696.92/787,652.60
  6. Step 6: Final answer
    x = 648,900.98

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Double scale
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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.