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Finding the Fourth Proportional to 542,338.65, 748,434.87 and 297,346.46

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Solution

The fourth proportional to 542,338.65, 748,434.87 and 297,346.46 is: 410,342.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,338.65 : 748,434.87 = 297,346.46 : x
  2. Step 2: Convert to fraction form
    542,338.65/748,434.87 = 297,346.46/x
  3. Step 3: Cross multiply
    542,338.65x = 748,434.87 × 297,346.46
  4. Step 4: Simplify right side
    542,338.65x = 222,544,455,392.89
  5. Step 5: Solve for x
    x = 222,544,455,392.89/542,338.65
  6. Step 6: Final answer
    x = 410,342.24

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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.