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Finding the Fourth Proportional to 636,851.19, 878,854.61 and 350,365.13

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Solution

The fourth proportional to 636,851.19, 878,854.61 and 350,365.13 is: 483,503.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,851.19 : 878,854.61 = 350,365.13 : x
  2. Step 2: Convert to fraction form
    636,851.19/878,854.61 = 350,365.13/x
  3. Step 3: Cross multiply
    636,851.19x = 878,854.61 × 350,365.13
  4. Step 4: Simplify right side
    636,851.19x = 307,920,009,683.75
  5. Step 5: Solve for x
    x = 307,920,009,683.75/636,851.19
  6. Step 6: Final answer
    x = 483,503.86

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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.