Home / 1,270,985.76-1,753,953.24-690,203.30

Finding the Fourth Proportional to 1,270,985.76, 1,753,953.24 and 690,203.30

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Solution

The fourth proportional to 1,270,985.76, 1,753,953.24 and 690,203.30 is: 952,476.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,985.76 : 1,753,953.24 = 690,203.30 : x
  2. Step 2: Convert to fraction form
    1,270,985.76/1,753,953.24 = 690,203.30/x
  3. Step 3: Cross multiply
    1,270,985.76x = 1,753,953.24 × 690,203.30
  4. Step 4: Simplify right side
    1,270,985.76x = 1,210,584,314,293.69
  5. Step 5: Solve for x
    x = 1,210,584,314,293.69/1,270,985.76
  6. Step 6: Final answer
    x = 952,476.69

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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.