Home / 876,858.48-1,315,425.29-371,420.91

Finding the Fourth Proportional to 876,858.48, 1,315,425.29 and 371,420.91

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Solution

The fourth proportional to 876,858.48, 1,315,425.29 and 371,420.91 is: 557,189.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,858.48 : 1,315,425.29 = 371,420.91 : x
  2. Step 2: Convert to fraction form
    876,858.48/1,315,425.29 = 371,420.91/x
  3. Step 3: Cross multiply
    876,858.48x = 1,315,425.29 × 371,420.91
  4. Step 4: Simplify right side
    876,858.48x = 488,576,456,391.71
  5. Step 5: Solve for x
    x = 488,576,456,391.71/876,858.48
  6. Step 6: Final answer
    x = 557,189.63

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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.