Home / 769,805.65-1,154,572.40-208,883.89

Finding the Fourth Proportional to 769,805.65, 1,154,572.40 and 208,883.89

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Solution

The fourth proportional to 769,805.65, 1,154,572.40 and 208,883.89 is: 313,288.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,805.65 : 1,154,572.40 = 208,883.89 : x
  2. Step 2: Convert to fraction form
    769,805.65/1,154,572.40 = 208,883.89/x
  3. Step 3: Cross multiply
    769,805.65x = 1,154,572.40 × 208,883.89
  4. Step 4: Simplify right side
    769,805.65x = 241,171,573,154.22
  5. Step 5: Solve for x
    x = 241,171,573,154.22/769,805.65
  6. Step 6: Final answer
    x = 313,288.91

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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.