Home / 1,242,013.20-1,860,723.45-707,947.80

Finding the Fourth Proportional to 1,242,013.20, 1,860,723.45 and 707,947.80

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Solution

The fourth proportional to 1,242,013.20, 1,860,723.45 and 707,947.80 is: 1,060,612.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,013.20 : 1,860,723.45 = 707,947.80 : x
  2. Step 2: Convert to fraction form
    1,242,013.20/1,860,723.45 = 707,947.80/x
  3. Step 3: Cross multiply
    1,242,013.20x = 1,860,723.45 × 707,947.80
  4. Step 4: Simplify right side
    1,242,013.20x = 1,317,295,072,835.91
  5. Step 5: Solve for x
    x = 1,317,295,072,835.91/1,242,013.20
  6. Step 6: Final answer
    x = 1,060,612.78

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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.