Home / 1,012,917.18-1,398,256.12-631,132.60

Finding the Fourth Proportional to 1,012,917.18, 1,398,256.12 and 631,132.60

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Solution

The fourth proportional to 1,012,917.18, 1,398,256.12 and 631,132.60 is: 871,231.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,917.18 : 1,398,256.12 = 631,132.60 : x
  2. Step 2: Convert to fraction form
    1,012,917.18/1,398,256.12 = 631,132.60/x
  3. Step 3: Cross multiply
    1,012,917.18x = 1,398,256.12 × 631,132.60
  4. Step 4: Simplify right side
    1,012,917.18x = 882,485,020,481.51
  5. Step 5: Solve for x
    x = 882,485,020,481.51/1,012,917.18
  6. Step 6: Final answer
    x = 871,231.17

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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.