Home / 1,325,531.40-1,829,233.32-721,919.40

Finding the Fourth Proportional to 1,325,531.40, 1,829,233.32 and 721,919.40

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Solution

The fourth proportional to 1,325,531.40, 1,829,233.32 and 721,919.40 is: 996,248.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,531.40 : 1,829,233.32 = 721,919.40 : x
  2. Step 2: Convert to fraction form
    1,325,531.40/1,829,233.32 = 721,919.40/x
  3. Step 3: Cross multiply
    1,325,531.40x = 1,829,233.32 × 721,919.40
  4. Step 4: Simplify right side
    1,325,531.40x = 1,320,559,020,834.41
  5. Step 5: Solve for x
    x = 1,320,559,020,834.41/1,325,531.40
  6. Step 6: Final answer
    x = 996,248.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.