Home / 876,670.80-1,314,617.40-403,501.20

Finding the Fourth Proportional to 876,670.80, 1,314,617.40 and 403,501.20

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Solution

The fourth proportional to 876,670.80, 1,314,617.40 and 403,501.20 is: 605,072.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,670.80 : 1,314,617.40 = 403,501.20 : x
  2. Step 2: Convert to fraction form
    876,670.80/1,314,617.40 = 403,501.20/x
  3. Step 3: Cross multiply
    876,670.80x = 1,314,617.40 × 403,501.20
  4. Step 4: Simplify right side
    876,670.80x = 530,449,698,440.88
  5. Step 5: Solve for x
    x = 530,449,698,440.88/876,670.80
  6. Step 6: Final answer
    x = 605,072.85

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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.