Home / 1,294,489.84-1,786,457.28-721,534.72

Finding the Fourth Proportional to 1,294,489.84, 1,786,457.28 and 721,534.72

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Solution

The fourth proportional to 1,294,489.84, 1,786,457.28 and 721,534.72 is: 995,752.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,489.84 : 1,786,457.28 = 721,534.72 : x
  2. Step 2: Convert to fraction form
    1,294,489.84/1,786,457.28 = 721,534.72/x
  3. Step 3: Cross multiply
    1,294,489.84x = 1,786,457.28 × 721,534.72
  4. Step 4: Simplify right side
    1,294,489.84x = 1,288,990,953,316.76
  5. Step 5: Solve for x
    x = 1,288,990,953,316.76/1,294,489.84
  6. Step 6: Final answer
    x = 995,752.08

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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.