Home / 761,488.70-1,050,854.39-421,956.95

Finding the Fourth Proportional to 761,488.70, 1,050,854.39 and 421,956.95

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Solution

The fourth proportional to 761,488.70, 1,050,854.39 and 421,956.95 is: 582,300.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,488.70 : 1,050,854.39 = 421,956.95 : x
  2. Step 2: Convert to fraction form
    761,488.70/1,050,854.39 = 421,956.95/x
  3. Step 3: Cross multiply
    761,488.70x = 1,050,854.39 × 421,956.95
  4. Step 4: Simplify right side
    761,488.70x = 443,415,305,934.45
  5. Step 5: Solve for x
    x = 443,415,305,934.45/761,488.70
  6. Step 6: Final answer
    x = 582,300.58

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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.