Home / 859,045.62-1,287,999.66-409,835.82

Finding the Fourth Proportional to 859,045.62, 1,287,999.66 and 409,835.82

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Solution

The fourth proportional to 859,045.62, 1,287,999.66 and 409,835.82 is: 614,482.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,045.62 : 1,287,999.66 = 409,835.82 : x
  2. Step 2: Convert to fraction form
    859,045.62/1,287,999.66 = 409,835.82/x
  3. Step 3: Cross multiply
    859,045.62x = 1,287,999.66 × 409,835.82
  4. Step 4: Simplify right side
    859,045.62x = 527,868,396,815.82
  5. Step 5: Solve for x
    x = 527,868,396,815.82/859,045.62
  6. Step 6: Final answer
    x = 614,482.38

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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.