Home / 781,779.80-1,172,669.70-738,234.20

Finding the Fourth Proportional to 781,779.80, 1,172,669.70 and 738,234.20

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Solution

The fourth proportional to 781,779.80, 1,172,669.70 and 738,234.20 is: 1,107,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,779.80 : 1,172,669.70 = 738,234.20 : x
  2. Step 2: Convert to fraction form
    781,779.80/1,172,669.70 = 738,234.20/x
  3. Step 3: Cross multiply
    781,779.80x = 1,172,669.70 × 738,234.20
  4. Step 4: Simplify right side
    781,779.80x = 865,704,877,843.74
  5. Step 5: Solve for x
    x = 865,704,877,843.74/781,779.80
  6. Step 6: Final answer
    x = 1,107,351.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.