Home / 702,177.40-1,053,266.10-418,742.20

Finding the Fourth Proportional to 702,177.40, 1,053,266.10 and 418,742.20

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Solution

The fourth proportional to 702,177.40, 1,053,266.10 and 418,742.20 is: 628,113.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,177.40 : 1,053,266.10 = 418,742.20 : x
  2. Step 2: Convert to fraction form
    702,177.40/1,053,266.10 = 418,742.20/x
  3. Step 3: Cross multiply
    702,177.40x = 1,053,266.10 × 418,742.20
  4. Step 4: Simplify right side
    702,177.40x = 441,046,963,899.42
  5. Step 5: Solve for x
    x = 441,046,963,899.42/702,177.40
  6. Step 6: Final answer
    x = 628,113.30

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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.