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Finding the Fourth Proportional to 418,679.10, 577,764.81 and 237,407.58

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Solution

The fourth proportional to 418,679.10, 577,764.81 and 237,407.58 is: 327,615.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,679.10 : 577,764.81 = 237,407.58 : x
  2. Step 2: Convert to fraction form
    418,679.10/577,764.81 = 237,407.58/x
  3. Step 3: Cross multiply
    418,679.10x = 577,764.81 × 237,407.58
  4. Step 4: Simplify right side
    418,679.10x = 137,165,745,351.26
  5. Step 5: Solve for x
    x = 137,165,745,351.26/418,679.10
  6. Step 6: Final answer
    x = 327,615.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.