Home / 943,792.68-1,302,718.52-642,161.64

Finding the Fourth Proportional to 943,792.68, 1,302,718.52 and 642,161.64

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Solution

The fourth proportional to 943,792.68, 1,302,718.52 and 642,161.64 is: 886,376.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,792.68 : 1,302,718.52 = 642,161.64 : x
  2. Step 2: Convert to fraction form
    943,792.68/1,302,718.52 = 642,161.64/x
  3. Step 3: Cross multiply
    943,792.68x = 1,302,718.52 × 642,161.64
  4. Step 4: Simplify right side
    943,792.68x = 836,555,861,261.57
  5. Step 5: Solve for x
    x = 836,555,861,261.57/943,792.68
  6. Step 6: Final answer
    x = 886,376.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.