Home / 1,205,470.30-1,663,651.12-661,698.18

Finding the Fourth Proportional to 1,205,470.30, 1,663,651.12 and 661,698.18

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Solution

The fourth proportional to 1,205,470.30, 1,663,651.12 and 661,698.18 is: 913,199.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,470.30 : 1,663,651.12 = 661,698.18 : x
  2. Step 2: Convert to fraction form
    1,205,470.30/1,663,651.12 = 661,698.18/x
  3. Step 3: Cross multiply
    1,205,470.30x = 1,663,651.12 × 661,698.18
  4. Step 4: Simplify right side
    1,205,470.30x = 1,100,834,918,258.96
  5. Step 5: Solve for x
    x = 1,100,834,918,258.96/1,205,470.30
  6. Step 6: Final answer
    x = 913,199.54

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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.