Home / 478,320.71-717,569.33-197,859.83

Finding the Fourth Proportional to 478,320.71, 717,569.33 and 197,859.83

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Solution

The fourth proportional to 478,320.71, 717,569.33 and 197,859.83 is: 296,826.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,320.71 : 717,569.33 = 197,859.83 : x
  2. Step 2: Convert to fraction form
    478,320.71/717,569.33 = 197,859.83/x
  3. Step 3: Cross multiply
    478,320.71x = 717,569.33 × 197,859.83
  4. Step 4: Simplify right side
    478,320.71x = 141,978,141,069.87
  5. Step 5: Solve for x
    x = 141,978,141,069.87/478,320.71
  6. Step 6: Final answer
    x = 296,826.25

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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.