Home / 386,052.90-579,079.35-260,081.70

Finding the Fourth Proportional to 386,052.90, 579,079.35 and 260,081.70

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Solution

The fourth proportional to 386,052.90, 579,079.35 and 260,081.70 is: 390,122.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,052.90 : 579,079.35 = 260,081.70 : x
  2. Step 2: Convert to fraction form
    386,052.90/579,079.35 = 260,081.70/x
  3. Step 3: Cross multiply
    386,052.90x = 579,079.35 × 260,081.70
  4. Step 4: Simplify right side
    386,052.90x = 150,607,941,782.90
  5. Step 5: Solve for x
    x = 150,607,941,782.90/386,052.90
  6. Step 6: Final answer
    x = 390,122.55

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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.