Home / 615,304.36-921,720.25-306,625.24

Finding the Fourth Proportional to 615,304.36, 921,720.25 and 306,625.24

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Solution

The fourth proportional to 615,304.36, 921,720.25 and 306,625.24 is: 459,321.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,304.36 : 921,720.25 = 306,625.24 : x
  2. Step 2: Convert to fraction form
    615,304.36/921,720.25 = 306,625.24/x
  3. Step 3: Cross multiply
    615,304.36x = 921,720.25 × 306,625.24
  4. Step 4: Simplify right side
    615,304.36x = 282,622,692,869.11
  5. Step 5: Solve for x
    x = 282,622,692,869.11/615,304.36
  6. Step 6: Final answer
    x = 459,321.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.