Home / 979,988.49-1,352,875.78-612,669.69

Finding the Fourth Proportional to 979,988.49, 1,352,875.78 and 612,669.69

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Solution

The fourth proportional to 979,988.49, 1,352,875.78 and 612,669.69 is: 845,791.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,988.49 : 1,352,875.78 = 612,669.69 : x
  2. Step 2: Convert to fraction form
    979,988.49/1,352,875.78 = 612,669.69/x
  3. Step 3: Cross multiply
    979,988.49x = 1,352,875.78 × 612,669.69
  4. Step 4: Simplify right side
    979,988.49x = 828,865,984,741.11
  5. Step 5: Solve for x
    x = 828,865,984,741.11/979,988.49
  6. Step 6: Final answer
    x = 845,791.55

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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.