Home / 1,245,261.60-1,866,677.40-638,049.96

Finding the Fourth Proportional to 1,245,261.60, 1,866,677.40 and 638,049.96

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Solution

The fourth proportional to 1,245,261.60, 1,866,677.40 and 638,049.96 is: 956,452.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,261.60 : 1,866,677.40 = 638,049.96 : x
  2. Step 2: Convert to fraction form
    1,245,261.60/1,866,677.40 = 638,049.96/x
  3. Step 3: Cross multiply
    1,245,261.60x = 1,866,677.40 × 638,049.96
  4. Step 4: Simplify right side
    1,245,261.60x = 1,191,033,440,402.90
  5. Step 5: Solve for x
    x = 1,191,033,440,402.90/1,245,261.60
  6. Step 6: Final answer
    x = 956,452.40

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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.