Home / 1,114,679.65-1,538,352.78-631,330.78

Finding the Fourth Proportional to 1,114,679.65, 1,538,352.78 and 631,330.78

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Solution

The fourth proportional to 1,114,679.65, 1,538,352.78 and 631,330.78 is: 871,290.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114,679.65 : 1,538,352.78 = 631,330.78 : x
  2. Step 2: Convert to fraction form
    1,114,679.65/1,538,352.78 = 631,330.78/x
  3. Step 3: Cross multiply
    1,114,679.65x = 1,538,352.78 × 631,330.78
  4. Step 4: Simplify right side
    1,114,679.65x = 971,209,460,512.57
  5. Step 5: Solve for x
    x = 971,209,460,512.57/1,114,679.65
  6. Step 6: Final answer
    x = 871,290.20

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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.