Home / 578,435.30-867,782.55-223,417.70

Finding the Fourth Proportional to 578,435.30, 867,782.55 and 223,417.70

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Solution

The fourth proportional to 578,435.30, 867,782.55 and 223,417.70 is: 335,176.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,435.30 : 867,782.55 = 223,417.70 : x
  2. Step 2: Convert to fraction form
    578,435.30/867,782.55 = 223,417.70/x
  3. Step 3: Cross multiply
    578,435.30x = 867,782.55 × 223,417.70
  4. Step 4: Simplify right side
    578,435.30x = 193,877,981,421.14
  5. Step 5: Solve for x
    x = 193,877,981,421.14/578,435.30
  6. Step 6: Final answer
    x = 335,176.61

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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.