Home / 677,354.40-1,016,031.60-341,431.20

Finding the Fourth Proportional to 677,354.40, 1,016,031.60 and 341,431.20

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Solution

The fourth proportional to 677,354.40, 1,016,031.60 and 341,431.20 is: 512,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,354.40 : 1,016,031.60 = 341,431.20 : x
  2. Step 2: Convert to fraction form
    677,354.40/1,016,031.60 = 341,431.20/x
  3. Step 3: Cross multiply
    677,354.40x = 1,016,031.60 × 341,431.20
  4. Step 4: Simplify right side
    677,354.40x = 346,904,888,425.92
  5. Step 5: Solve for x
    x = 346,904,888,425.92/677,354.40
  6. Step 6: Final answer
    x = 512,146.80

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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.