Home / 1,332,988.54-1,839,516.48-721,139.38

Finding the Fourth Proportional to 1,332,988.54, 1,839,516.48 and 721,139.38

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Solution

The fourth proportional to 1,332,988.54, 1,839,516.48 and 721,139.38 is: 995,168.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,988.54 : 1,839,516.48 = 721,139.38 : x
  2. Step 2: Convert to fraction form
    1,332,988.54/1,839,516.48 = 721,139.38/x
  3. Step 3: Cross multiply
    1,332,988.54x = 1,839,516.48 × 721,139.38
  4. Step 4: Simplify right side
    1,332,988.54x = 1,326,547,773,886.98
  5. Step 5: Solve for x
    x = 1,326,547,773,886.98/1,332,988.54
  6. Step 6: Final answer
    x = 995,168.18

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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.