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Finding the Fourth Proportional to 560,486.41, 840,706.10 and 260,863.93

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Solution

The fourth proportional to 560,486.41, 840,706.10 and 260,863.93 is: 391,284.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,486.41 : 840,706.10 = 260,863.93 : x
  2. Step 2: Convert to fraction form
    560,486.41/840,706.10 = 260,863.93/x
  3. Step 3: Cross multiply
    560,486.41x = 840,706.10 × 260,863.93
  4. Step 4: Simplify right side
    560,486.41x = 219,309,895,916.65
  5. Step 5: Solve for x
    x = 219,309,895,916.65/560,486.41
  6. Step 6: Final answer
    x = 391,284.95

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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.