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Finding the Fourth Proportional to 585,705.70, 878,558.55 and 349,315.30

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Solution

The fourth proportional to 585,705.70, 878,558.55 and 349,315.30 is: 523,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,705.70 : 878,558.55 = 349,315.30 : x
  2. Step 2: Convert to fraction form
    585,705.70/878,558.55 = 349,315.30/x
  3. Step 3: Cross multiply
    585,705.70x = 878,558.55 × 349,315.30
  4. Step 4: Simplify right side
    585,705.70x = 306,893,943,460.82
  5. Step 5: Solve for x
    x = 306,893,943,460.82/585,705.70
  6. Step 6: Final answer
    x = 523,972.95

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Similar ratio
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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.