Home / 1,012,916.43-1,398,255.12-631,131.84

Finding the Fourth Proportional to 1,012,916.43, 1,398,255.12 and 631,131.84

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Solution

The fourth proportional to 1,012,916.43, 1,398,255.12 and 631,131.84 is: 871,230.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,916.43 : 1,398,255.12 = 631,131.84 : x
  2. Step 2: Convert to fraction form
    1,012,916.43/1,398,255.12 = 631,131.84/x
  3. Step 3: Cross multiply
    1,012,916.43x = 1,398,255.12 × 631,131.84
  4. Step 4: Simplify right side
    1,012,916.43x = 882,483,326,675.02
  5. Step 5: Solve for x
    x = 882,483,326,675.02/1,012,916.43
  6. Step 6: Final answer
    x = 871,230.14

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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.