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Finding the Fourth Proportional to 542,843.93, 749,064.21 and 301,065.95

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Solution

The fourth proportional to 542,843.93, 749,064.21 and 301,065.95 is: 415,437.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,843.93 : 749,064.21 = 301,065.95 : x
  2. Step 2: Convert to fraction form
    542,843.93/749,064.21 = 301,065.95/x
  3. Step 3: Cross multiply
    542,843.93x = 749,064.21 × 301,065.95
  4. Step 4: Simplify right side
    542,843.93x = 225,517,727,994.65
  5. Step 5: Solve for x
    x = 225,517,727,994.65/542,843.93
  6. Step 6: Final answer
    x = 415,437.51

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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.