Home / 1,209,718.80-1,815,234.30-499,818.60

Finding the Fourth Proportional to 1,209,718.80, 1,815,234.30 and 499,818.60

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Solution

The fourth proportional to 1,209,718.80, 1,815,234.30 and 499,818.60 is: 749,998.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,718.80 : 1,815,234.30 = 499,818.60 : x
  2. Step 2: Convert to fraction form
    1,209,718.80/1,815,234.30 = 499,818.60/x
  3. Step 3: Cross multiply
    1,209,718.80x = 1,815,234.30 × 499,818.60
  4. Step 4: Simplify right side
    1,209,718.80x = 907,287,866,497.98
  5. Step 5: Solve for x
    x = 907,287,866,497.98/1,209,718.80
  6. Step 6: Final answer
    x = 749,998.98

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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.