Home / 878,560.11-1,317,340.80-345,792.33

Finding the Fourth Proportional to 878,560.11, 1,317,340.80 and 345,792.33

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Solution

The fourth proportional to 878,560.11, 1,317,340.80 and 345,792.33 is: 518,491.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,560.11 : 1,317,340.80 = 345,792.33 : x
  2. Step 2: Convert to fraction form
    878,560.11/1,317,340.80 = 345,792.33/x
  3. Step 3: Cross multiply
    878,560.11x = 1,317,340.80 × 345,792.33
  4. Step 4: Simplify right side
    878,560.11x = 455,526,344,636.06
  5. Step 5: Solve for x
    x = 455,526,344,636.06/878,560.11
  6. Step 6: Final answer
    x = 518,491.95

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1.5x scale

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.