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Finding the Fourth Proportional to 647,885.52, 972,108.96 and 348,016.23

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Solution

The fourth proportional to 647,885.52, 972,108.96 and 348,016.23 is: 522,175.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,885.52 : 972,108.96 = 348,016.23 : x
  2. Step 2: Convert to fraction form
    647,885.52/972,108.96 = 348,016.23/x
  3. Step 3: Cross multiply
    647,885.52x = 972,108.96 × 348,016.23
  4. Step 4: Simplify right side
    647,885.52x = 338,309,695,408.42
  5. Step 5: Solve for x
    x = 338,309,695,408.42/647,885.52
  6. Step 6: Final answer
    x = 522,175.11

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1.5x scale

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.