Home / 876,430.80-1,314,257.40-403,261.20

Finding the Fourth Proportional to 876,430.80, 1,314,257.40 and 403,261.20

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Solution

The fourth proportional to 876,430.80, 1,314,257.40 and 403,261.20 is: 604,712.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,430.80 : 1,314,257.40 = 403,261.20 : x
  2. Step 2: Convert to fraction form
    876,430.80/1,314,257.40 = 403,261.20/x
  3. Step 3: Cross multiply
    876,430.80x = 1,314,257.40 × 403,261.20
  4. Step 4: Simplify right side
    876,430.80x = 529,989,016,232.88
  5. Step 5: Solve for x
    x = 529,989,016,232.88/876,430.80
  6. Step 6: Final answer
    x = 604,712.91

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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.