Home / 787,055.12-1,086,052.31-442,885.05

Finding the Fourth Proportional to 787,055.12, 1,086,052.31 and 442,885.05

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Solution

The fourth proportional to 787,055.12, 1,086,052.31 and 442,885.05 is: 611,134.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,055.12 : 1,086,052.31 = 442,885.05 : x
  2. Step 2: Convert to fraction form
    787,055.12/1,086,052.31 = 442,885.05/x
  3. Step 3: Cross multiply
    787,055.12x = 1,086,052.31 × 442,885.05
  4. Step 4: Simplify right side
    787,055.12x = 480,996,326,186.70
  5. Step 5: Solve for x
    x = 480,996,326,186.70/787,055.12
  6. Step 6: Final answer
    x = 611,134.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.