Home / 876,017.13-1,207,808.31-731,031.78

Finding the Fourth Proportional to 876,017.13, 1,207,808.31 and 731,031.78

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Solution

The fourth proportional to 876,017.13, 1,207,808.31 and 731,031.78 is: 1,007,909.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,017.13 : 1,207,808.31 = 731,031.78 : x
  2. Step 2: Convert to fraction form
    876,017.13/1,207,808.31 = 731,031.78/x
  3. Step 3: Cross multiply
    876,017.13x = 1,207,808.31 × 731,031.78
  4. Step 4: Simplify right side
    876,017.13x = 882,946,258,758.09
  5. Step 5: Solve for x
    x = 882,946,258,758.09/876,017.13
  6. Step 6: Final answer
    x = 1,007,909.81

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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.