Home / 566,278.43-781,480.65-308,172.03

Finding the Fourth Proportional to 566,278.43, 781,480.65 and 308,172.03

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Solution

The fourth proportional to 566,278.43, 781,480.65 and 308,172.03 is: 425,286.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,278.43 : 781,480.65 = 308,172.03 : x
  2. Step 2: Convert to fraction form
    566,278.43/781,480.65 = 308,172.03/x
  3. Step 3: Cross multiply
    566,278.43x = 781,480.65 × 308,172.03
  4. Step 4: Simplify right side
    566,278.43x = 240,830,476,541.31
  5. Step 5: Solve for x
    x = 240,830,476,541.31/566,278.43
  6. Step 6: Final answer
    x = 425,286.34

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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.