Home / 877,079.70-1,315,619.55-404,687.70

Finding the Fourth Proportional to 877,079.70, 1,315,619.55 and 404,687.70

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Solution

The fourth proportional to 877,079.70, 1,315,619.55 and 404,687.70 is: 607,031.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,079.70 : 1,315,619.55 = 404,687.70 : x
  2. Step 2: Convert to fraction form
    877,079.70/1,315,619.55 = 404,687.70/x
  3. Step 3: Cross multiply
    877,079.70x = 1,315,619.55 × 404,687.70
  4. Step 4: Simplify right side
    877,079.70x = 532,415,049,764.54
  5. Step 5: Solve for x
    x = 532,415,049,764.54/877,079.70
  6. Step 6: Final answer
    x = 607,031.55

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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.