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Finding the Fourth Proportional to 543,217.80, 749,634.88 and 301,502.46

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Solution

The fourth proportional to 543,217.80, 749,634.88 and 301,502.46 is: 416,070.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,217.80 : 749,634.88 = 301,502.46 : x
  2. Step 2: Convert to fraction form
    543,217.80/749,634.88 = 301,502.46/x
  3. Step 3: Cross multiply
    543,217.80x = 749,634.88 × 301,502.46
  4. Step 4: Simplify right side
    543,217.80x = 226,016,760,421.81
  5. Step 5: Solve for x
    x = 226,016,760,421.81/543,217.80
  6. Step 6: Final answer
    x = 416,070.24

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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.