Home / 1,118,972.80-1,676,490.90-918,206.20

Finding the Fourth Proportional to 1,118,972.80, 1,676,490.90 and 918,206.20

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Solution

The fourth proportional to 1,118,972.80, 1,676,490.90 and 918,206.20 is: 1,375,694.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,972.80 : 1,676,490.90 = 918,206.20 : x
  2. Step 2: Convert to fraction form
    1,118,972.80/1,676,490.90 = 918,206.20/x
  3. Step 3: Cross multiply
    1,118,972.80x = 1,676,490.90 × 918,206.20
  4. Step 4: Simplify right side
    1,118,972.80x = 1,539,364,338,623.58
  5. Step 5: Solve for x
    x = 1,539,364,338,623.58/1,118,972.80
  6. Step 6: Final answer
    x = 1,375,694.15

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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.