Home / 390,316.97-585,350.04-124,015.25

Finding the Fourth Proportional to 390,316.97, 585,350.04 and 124,015.25

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Solution

The fourth proportional to 390,316.97, 585,350.04 and 124,015.25 is: 185,983.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,316.97 : 585,350.04 = 124,015.25 : x
  2. Step 2: Convert to fraction form
    390,316.97/585,350.04 = 124,015.25/x
  3. Step 3: Cross multiply
    390,316.97x = 585,350.04 × 124,015.25
  4. Step 4: Simplify right side
    390,316.97x = 72,592,328,621.36
  5. Step 5: Solve for x
    x = 72,592,328,621.36/390,316.97
  6. Step 6: Final answer
    x = 185,983.02

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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.