Home / 869,672.40-1,304,508.60-749,403.60

Finding the Fourth Proportional to 869,672.40, 1,304,508.60 and 749,403.60

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Solution

The fourth proportional to 869,672.40, 1,304,508.60 and 749,403.60 is: 1,124,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,672.40 : 1,304,508.60 = 749,403.60 : x
  2. Step 2: Convert to fraction form
    869,672.40/1,304,508.60 = 749,403.60/x
  3. Step 3: Cross multiply
    869,672.40x = 1,304,508.60 × 749,403.60
  4. Step 4: Simplify right side
    869,672.40x = 977,603,441,070.96
  5. Step 5: Solve for x
    x = 977,603,441,070.96/869,672.40
  6. Step 6: Final answer
    x = 1,124,105.40

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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.