Home / 390,619.28-585,735.06-124,345.16

Finding the Fourth Proportional to 390,619.28, 585,735.06 and 124,345.16

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Solution

The fourth proportional to 390,619.28, 585,735.06 and 124,345.16 is: 186,456.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,619.28 : 585,735.06 = 124,345.16 : x
  2. Step 2: Convert to fraction form
    390,619.28/585,735.06 = 124,345.16/x
  3. Step 3: Cross multiply
    390,619.28x = 585,735.06 × 124,345.16
  4. Step 4: Simplify right side
    390,619.28x = 72,833,319,753.31
  5. Step 5: Solve for x
    x = 72,833,319,753.31/390,619.28
  6. Step 6: Final answer
    x = 186,456.03

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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.