Home / 1,102,184.20-1,653,276.30-990,209.80

Finding the Fourth Proportional to 1,102,184.20, 1,653,276.30 and 990,209.80

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Solution

The fourth proportional to 1,102,184.20, 1,653,276.30 and 990,209.80 is: 1,485,314.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,184.20 : 1,653,276.30 = 990,209.80 : x
  2. Step 2: Convert to fraction form
    1,102,184.20/1,653,276.30 = 990,209.80/x
  3. Step 3: Cross multiply
    1,102,184.20x = 1,653,276.30 × 990,209.80
  4. Step 4: Simplify right side
    1,102,184.20x = 1,637,090,394,367.74
  5. Step 5: Solve for x
    x = 1,637,090,394,367.74/1,102,184.20
  6. Step 6: Final answer
    x = 1,485,314.70

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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.