Home / 1,012,916.18-1,398,254.74-631,131.60

Finding the Fourth Proportional to 1,012,916.18, 1,398,254.74 and 631,131.60

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Solution

The fourth proportional to 1,012,916.18, 1,398,254.74 and 631,131.60 is: 871,229.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,916.18 : 1,398,254.74 = 631,131.60 : x
  2. Step 2: Convert to fraction form
    1,012,916.18/1,398,254.74 = 631,131.60/x
  3. Step 3: Cross multiply
    1,012,916.18x = 1,398,254.74 × 631,131.60
  4. Step 4: Simplify right side
    1,012,916.18x = 882,482,751,263.78
  5. Step 5: Solve for x
    x = 882,482,751,263.78/1,012,916.18
  6. Step 6: Final answer
    x = 871,229.79

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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.