Home / 877,458.98-1,315,347.71-371,323.78

Finding the Fourth Proportional to 877,458.98, 1,315,347.71 and 371,323.78

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Solution

The fourth proportional to 877,458.98, 1,315,347.71 and 371,323.78 is: 556,629.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,458.98 : 1,315,347.71 = 371,323.78 : x
  2. Step 2: Convert to fraction form
    877,458.98/1,315,347.71 = 371,323.78/x
  3. Step 3: Cross multiply
    877,458.98x = 1,315,347.71 × 371,323.78
  4. Step 4: Simplify right side
    877,458.98x = 488,419,883,691.54
  5. Step 5: Solve for x
    x = 488,419,883,691.54/877,458.98
  6. Step 6: Final answer
    x = 556,629.88

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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.