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Finding the Fourth Proportional to 712,031.66, 982,595.13 and 385,337.06

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Solution

The fourth proportional to 712,031.66, 982,595.13 and 385,337.06 is: 531,760.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,031.66 : 982,595.13 = 385,337.06 : x
  2. Step 2: Convert to fraction form
    712,031.66/982,595.13 = 385,337.06/x
  3. Step 3: Cross multiply
    712,031.66x = 982,595.13 × 385,337.06
  4. Step 4: Simplify right side
    712,031.66x = 378,630,318,564.52
  5. Step 5: Solve for x
    x = 378,630,318,564.52/712,031.66
  6. Step 6: Final answer
    x = 531,760.51

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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.