Home / 1,294,433.60-1,786,326.66-721,510.10

Finding the Fourth Proportional to 1,294,433.60, 1,786,326.66 and 721,510.10

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Solution

The fourth proportional to 1,294,433.60, 1,786,326.66 and 721,510.10 is: 995,688.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,433.60 : 1,786,326.66 = 721,510.10 : x
  2. Step 2: Convert to fraction form
    1,294,433.60/1,786,326.66 = 721,510.10/x
  3. Step 3: Cross multiply
    1,294,433.60x = 1,786,326.66 × 721,510.10
  4. Step 4: Simplify right side
    1,294,433.60x = 1,288,852,727,089.27
  5. Step 5: Solve for x
    x = 1,288,852,727,089.27/1,294,433.60
  6. Step 6: Final answer
    x = 995,688.56

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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.