Home / 1,087,528.80-1,630,515.60-487,999.20

Finding the Fourth Proportional to 1,087,528.80, 1,630,515.60 and 487,999.20

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Solution

The fourth proportional to 1,087,528.80, 1,630,515.60 and 487,999.20 is: 731,649.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,528.80 : 1,630,515.60 = 487,999.20 : x
  2. Step 2: Convert to fraction form
    1,087,528.80/1,630,515.60 = 487,999.20/x
  3. Step 3: Cross multiply
    1,087,528.80x = 1,630,515.60 × 487,999.20
  4. Step 4: Simplify right side
    1,087,528.80x = 795,690,308,387.52
  5. Step 5: Solve for x
    x = 795,690,308,387.52/1,087,528.80
  6. Step 6: Final answer
    x = 731,649.87

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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.