Home / 804,689.60-1,206,266.40-299,115.20

Finding the Fourth Proportional to 804,689.60, 1,206,266.40 and 299,115.20

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Solution

The fourth proportional to 804,689.60, 1,206,266.40 and 299,115.20 is: 448,387.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,689.60 : 1,206,266.40 = 299,115.20 : x
  2. Step 2: Convert to fraction form
    804,689.60/1,206,266.40 = 299,115.20/x
  3. Step 3: Cross multiply
    804,689.60x = 1,206,266.40 × 299,115.20
  4. Step 4: Simplify right side
    804,689.60x = 360,812,615,489.28
  5. Step 5: Solve for x
    x = 360,812,615,489.28/804,689.60
  6. Step 6: Final answer
    x = 448,387.32

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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.