Home / 390,919.14-586,422.44-124,617.87

Finding the Fourth Proportional to 390,919.14, 586,422.44 and 124,617.87

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Solution

The fourth proportional to 390,919.14, 586,422.44 and 124,617.87 is: 186,940.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,919.14 : 586,422.44 = 124,617.87 : x
  2. Step 2: Convert to fraction form
    390,919.14/586,422.44 = 124,617.87/x
  3. Step 3: Cross multiply
    390,919.14x = 586,422.44 × 124,617.87
  4. Step 4: Simplify right side
    390,919.14x = 73,078,714,769.91
  5. Step 5: Solve for x
    x = 73,078,714,769.91/390,919.14
  6. Step 6: Final answer
    x = 186,940.74

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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.