Home / 878,588.24-1,317,382.76-345,820.40

Finding the Fourth Proportional to 878,588.24, 1,317,382.76 and 345,820.40

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Solution

The fourth proportional to 878,588.24, 1,317,382.76 and 345,820.40 is: 518,533.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,588.24 : 1,317,382.76 = 345,820.40 : x
  2. Step 2: Convert to fraction form
    878,588.24/1,317,382.76 = 345,820.40/x
  3. Step 3: Cross multiply
    878,588.24x = 1,317,382.76 × 345,820.40
  4. Step 4: Simplify right side
    878,588.24x = 455,577,833,016.30
  5. Step 5: Solve for x
    x = 455,577,833,016.30/878,588.24
  6. Step 6: Final answer
    x = 518,533.95

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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.