Home / 761,551.05-1,142,326.58-288,251.85

Finding the Fourth Proportional to 761,551.05, 1,142,326.58 and 288,251.85

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Solution

The fourth proportional to 761,551.05, 1,142,326.58 and 288,251.85 is: 432,377.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,551.05 : 1,142,326.58 = 288,251.85 : x
  2. Step 2: Convert to fraction form
    761,551.05/1,142,326.58 = 288,251.85/x
  3. Step 3: Cross multiply
    761,551.05x = 1,142,326.58 × 288,251.85
  4. Step 4: Simplify right side
    761,551.05x = 329,277,748,547.91
  5. Step 5: Solve for x
    x = 329,277,748,547.91/761,551.05
  6. Step 6: Final answer
    x = 432,377.78

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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.