Home / 1,288,630.80-1,778,451.50-737,397.45

Finding the Fourth Proportional to 1,288,630.80, 1,778,451.50 and 737,397.45

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Solution

The fourth proportional to 1,288,630.80, 1,778,451.50 and 737,397.45 is: 1,017,689.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,630.80 : 1,778,451.50 = 737,397.45 : x
  2. Step 2: Convert to fraction form
    1,288,630.80/1,778,451.50 = 737,397.45/x
  3. Step 3: Cross multiply
    1,288,630.80x = 1,778,451.50 × 737,397.45
  4. Step 4: Simplify right side
    1,288,630.80x = 1,311,425,602,892.17
  5. Step 5: Solve for x
    x = 1,311,425,602,892.17/1,288,630.80
  6. Step 6: Final answer
    x = 1,017,689.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.