Home / 440,419.56-660,643.04-209,557.95

Finding the Fourth Proportional to 440,419.56, 660,643.04 and 209,557.95

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Solution

The fourth proportional to 440,419.56, 660,643.04 and 209,557.95 is: 314,343.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,419.56 : 660,643.04 = 209,557.95 : x
  2. Step 2: Convert to fraction form
    440,419.56/660,643.04 = 209,557.95/x
  3. Step 3: Cross multiply
    440,419.56x = 660,643.04 × 209,557.95
  4. Step 4: Simplify right side
    440,419.56x = 138,443,001,144.17
  5. Step 5: Solve for x
    x = 138,443,001,144.17/440,419.56
  6. Step 6: Final answer
    x = 314,343.44

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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.