Home / 859,852.38-1,289,781.54-260,818.68

Finding the Fourth Proportional to 859,852.38, 1,289,781.54 and 260,818.68

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Solution

The fourth proportional to 859,852.38, 1,289,781.54 and 260,818.68 is: 391,228.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,852.38 : 1,289,781.54 = 260,818.68 : x
  2. Step 2: Convert to fraction form
    859,852.38/1,289,781.54 = 260,818.68/x
  3. Step 3: Cross multiply
    859,852.38x = 1,289,781.54 × 260,818.68
  4. Step 4: Simplify right side
    859,852.38x = 336,399,118,751.17
  5. Step 5: Solve for x
    x = 336,399,118,751.17/859,852.38
  6. Step 6: Final answer
    x = 391,228.92

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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.