Home / 727,143.08-1,090,206.06-322,138.04

Finding the Fourth Proportional to 727,143.08, 1,090,206.06 and 322,138.04

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Solution

The fourth proportional to 727,143.08, 1,090,206.06 and 322,138.04 is: 482,981.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,143.08 : 1,090,206.06 = 322,138.04 : x
  2. Step 2: Convert to fraction form
    727,143.08/1,090,206.06 = 322,138.04/x
  3. Step 3: Cross multiply
    727,143.08x = 1,090,206.06 × 322,138.04
  4. Step 4: Simplify right side
    727,143.08x = 351,196,843,364.52
  5. Step 5: Solve for x
    x = 351,196,843,364.52/727,143.08
  6. Step 6: Final answer
    x = 482,981.76

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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.