Home / 1,100,430.61-1,518,231.22-664,685.17

Finding the Fourth Proportional to 1,100,430.61, 1,518,231.22 and 664,685.17

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Solution

The fourth proportional to 1,100,430.61, 1,518,231.22 and 664,685.17 is: 917,046.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,430.61 : 1,518,231.22 = 664,685.17 : x
  2. Step 2: Convert to fraction form
    1,100,430.61/1,518,231.22 = 664,685.17/x
  3. Step 3: Cross multiply
    1,100,430.61x = 1,518,231.22 × 664,685.17
  4. Step 4: Simplify right side
    1,100,430.61x = 1,009,145,776,565.01
  5. Step 5: Solve for x
    x = 1,009,145,776,565.01/1,100,430.61
  6. Step 6: Final answer
    x = 917,046.26

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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.