Home / 390,098.08-585,105.20-264,544.23

Finding the Fourth Proportional to 390,098.08, 585,105.20 and 264,544.23

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Solution

The fourth proportional to 390,098.08, 585,105.20 and 264,544.23 is: 396,787.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,098.08 : 585,105.20 = 264,544.23 : x
  2. Step 2: Convert to fraction form
    390,098.08/585,105.20 = 264,544.23/x
  3. Step 3: Cross multiply
    390,098.08x = 585,105.20 × 264,544.23
  4. Step 4: Simplify right side
    390,098.08x = 154,786,204,603.00
  5. Step 5: Solve for x
    x = 154,786,204,603.00/390,098.08
  6. Step 6: Final answer
    x = 396,787.92

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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.