Home / 876,418.66-1,315,090.85-621,895.89

Finding the Fourth Proportional to 876,418.66, 1,315,090.85 and 621,895.89

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Solution

The fourth proportional to 876,418.66, 1,315,090.85 and 621,895.89 is: 933,172.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,418.66 : 1,315,090.85 = 621,895.89 : x
  2. Step 2: Convert to fraction form
    876,418.66/1,315,090.85 = 621,895.89/x
  3. Step 3: Cross multiply
    876,418.66x = 1,315,090.85 × 621,895.89
  4. Step 4: Simplify right side
    876,418.66x = 817,849,594,591.61
  5. Step 5: Solve for x
    x = 817,849,594,591.61/876,418.66
  6. Step 6: Final answer
    x = 933,172.27

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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.