Home / 675,261.60-1,012,892.40-423,319.20

Finding the Fourth Proportional to 675,261.60, 1,012,892.40 and 423,319.20

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Solution

The fourth proportional to 675,261.60, 1,012,892.40 and 423,319.20 is: 634,978.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,261.60 : 1,012,892.40 = 423,319.20 : x
  2. Step 2: Convert to fraction form
    675,261.60/1,012,892.40 = 423,319.20/x
  3. Step 3: Cross multiply
    675,261.60x = 1,012,892.40 × 423,319.20
  4. Step 4: Simplify right side
    675,261.60x = 428,776,800,454.08
  5. Step 5: Solve for x
    x = 428,776,800,454.08/675,261.60
  6. Step 6: Final answer
    x = 634,978.80

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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.