Home / 745,841.72-1,029,335.92-455,437.28

Finding the Fourth Proportional to 745,841.72, 1,029,335.92 and 455,437.28

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Solution

The fourth proportional to 745,841.72, 1,029,335.92 and 455,437.28 is: 628,548.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,841.72 : 1,029,335.92 = 455,437.28 : x
  2. Step 2: Convert to fraction form
    745,841.72/1,029,335.92 = 455,437.28/x
  3. Step 3: Cross multiply
    745,841.72x = 1,029,335.92 × 455,437.28
  4. Step 4: Simplify right side
    745,841.72x = 468,797,951,611.10
  5. Step 5: Solve for x
    x = 468,797,951,611.10/745,841.72
  6. Step 6: Final answer
    x = 628,548.84

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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.