Home / 1,264,878.79-1,745,574.10-721,004.69

Finding the Fourth Proportional to 1,264,878.79, 1,745,574.10 and 721,004.69

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Solution

The fourth proportional to 1,264,878.79, 1,745,574.10 and 721,004.69 is: 995,010.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,878.79 : 1,745,574.10 = 721,004.69 : x
  2. Step 2: Convert to fraction form
    1,264,878.79/1,745,574.10 = 721,004.69/x
  3. Step 3: Cross multiply
    1,264,878.79x = 1,745,574.10 × 721,004.69
  4. Step 4: Simplify right side
    1,264,878.79x = 1,258,567,115,403.95
  5. Step 5: Solve for x
    x = 1,258,567,115,403.95/1,264,878.79
  6. Step 6: Final answer
    x = 995,010.06

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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.