Home / 876,420.68-1,315,093.86-621,897.90

Finding the Fourth Proportional to 876,420.68, 1,315,093.86 and 621,897.90

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Solution

The fourth proportional to 876,420.68, 1,315,093.86 and 621,897.90 is: 933,175.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,420.68 : 1,315,093.86 = 621,897.90 : x
  2. Step 2: Convert to fraction form
    876,420.68/1,315,093.86 = 621,897.90/x
  3. Step 3: Cross multiply
    876,420.68x = 1,315,093.86 × 621,897.90
  4. Step 4: Simplify right side
    876,420.68x = 817,854,109,836.89
  5. Step 5: Solve for x
    x = 817,854,109,836.89/876,420.68
  6. Step 6: Final answer
    x = 933,175.28

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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.