Home / 2,312,862.17-3,191,774.91-1,280,387.06

Finding the Fourth Proportional to 2,312,862.17, 3,191,774.91 and 1,280,387.06

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Solution

The fourth proportional to 2,312,862.17, 3,191,774.91 and 1,280,387.06 is: 1,766,948.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312,862.17 : 3,191,774.91 = 1,280,387.06 : x
  2. Step 2: Convert to fraction form
    2,312,862.17/3,191,774.91 = 1,280,387.06/x
  3. Step 3: Cross multiply
    2,312,862.17x = 3,191,774.91 × 1,280,387.06
  4. Step 4: Simplify right side
    2,312,862.17x = 4,086,707,293,196.67
  5. Step 5: Solve for x
    x = 4,086,707,293,196.67/2,312,862.17
  6. Step 6: Final answer
    x = 1,766,948.05

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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.