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Finding the Fourth Proportional to 486,639.17, 666,684.52 and 468,445.22

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Solution

The fourth proportional to 486,639.17, 666,684.52 and 468,445.22 is: 641,759.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,639.17 : 666,684.52 = 468,445.22 : x
  2. Step 2: Convert to fraction form
    486,639.17/666,684.52 = 468,445.22/x
  3. Step 3: Cross multiply
    486,639.17x = 666,684.52 × 468,445.22
  4. Step 4: Simplify right side
    486,639.17x = 312,305,176,641.99
  5. Step 5: Solve for x
    x = 312,305,176,641.99/486,639.17
  6. Step 6: Final answer
    x = 641,759.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.