Home / 787,654.60-1,180,607.10-432,923.20

Finding the Fourth Proportional to 787,654.60, 1,180,607.10 and 432,923.20

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Solution

The fourth proportional to 787,654.60, 1,180,607.10 and 432,923.20 is: 648,903.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,654.60 : 1,180,607.10 = 432,923.20 : x
  2. Step 2: Convert to fraction form
    787,654.60/1,180,607.10 = 432,923.20/x
  3. Step 3: Cross multiply
    787,654.60x = 1,180,607.10 × 432,923.20
  4. Step 4: Simplify right side
    787,654.60x = 511,112,203,674.72
  5. Step 5: Solve for x
    x = 511,112,203,674.72/787,654.60
  6. Step 6: Final answer
    x = 648,903.98

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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.