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Finding the Fourth Proportional to 636,525.68, 878,387.93 and 350,045.77

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Solution

The fourth proportional to 636,525.68, 878,387.93 and 350,045.77 is: 483,053.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,525.68 : 878,387.93 = 350,045.77 : x
  2. Step 2: Convert to fraction form
    636,525.68/878,387.93 = 350,045.77/x
  3. Step 3: Cross multiply
    636,525.68x = 878,387.93 × 350,045.77
  4. Step 4: Simplify right side
    636,525.68x = 307,475,977,565.33
  5. Step 5: Solve for x
    x = 307,475,977,565.33/636,525.68
  6. Step 6: Final answer
    x = 483,053.53

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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.