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Finding the Fourth Proportional to 859,586, 1,289,580.68 and 845,304.89

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Solution

The fourth proportional to 859,586, 1,289,580.68 and 845,304.89 is: 1,268,155.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,586 : 1,289,580.68 = 845,304.89 : x
  2. Step 2: Convert to fraction form
    859,586/1,289,580.68 = 845,304.89/x
  3. Step 3: Cross multiply
    859,586x = 1,289,580.68 × 845,304.89
  4. Step 4: Simplify right side
    859,586x = 1,090,088,854,853.53
  5. Step 5: Solve for x
    x = 1,090,088,854,853.53/859,586
  6. Step 6: Final answer
    x = 1,268,155.66

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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.