Home / 1,007,220.32-1,389,911.28-554,422.88

Finding the Fourth Proportional to 1,007,220.32, 1,389,911.28 and 554,422.88

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Solution

The fourth proportional to 1,007,220.32, 1,389,911.28 and 554,422.88 is: 765,074.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,220.32 : 1,389,911.28 = 554,422.88 : x
  2. Step 2: Convert to fraction form
    1,007,220.32/1,389,911.28 = 554,422.88/x
  3. Step 3: Cross multiply
    1,007,220.32x = 1,389,911.28 × 554,422.88
  4. Step 4: Simplify right side
    1,007,220.32x = 770,598,614,802.09
  5. Step 5: Solve for x
    x = 770,598,614,802.09/1,007,220.32
  6. Step 6: Final answer
    x = 765,074.53

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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.