Home / 677,042.40-1,015,563.60-396,415.20

Finding the Fourth Proportional to 677,042.40, 1,015,563.60 and 396,415.20

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Solution

The fourth proportional to 677,042.40, 1,015,563.60 and 396,415.20 is: 594,622.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,042.40 : 1,015,563.60 = 396,415.20 : x
  2. Step 2: Convert to fraction form
    677,042.40/1,015,563.60 = 396,415.20/x
  3. Step 3: Cross multiply
    677,042.40x = 1,015,563.60 × 396,415.20
  4. Step 4: Simplify right side
    677,042.40x = 402,584,847,606.72
  5. Step 5: Solve for x
    x = 402,584,847,606.72/677,042.40
  6. Step 6: Final answer
    x = 594,622.80

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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.