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Finding the Fourth Proportional to 642,110.33, 886,110.02 and 370,176.92

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Solution

The fourth proportional to 642,110.33, 886,110.02 and 370,176.92 is: 510,842.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,110.33 : 886,110.02 = 370,176.92 : x
  2. Step 2: Convert to fraction form
    642,110.33/886,110.02 = 370,176.92/x
  3. Step 3: Cross multiply
    642,110.33x = 886,110.02 × 370,176.92
  4. Step 4: Simplify right side
    642,110.33x = 328,017,471,703.30
  5. Step 5: Solve for x
    x = 328,017,471,703.30/642,110.33
  6. Step 6: Final answer
    x = 510,842.86

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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.