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Finding the Fourth Proportional to 426,780.92, 588,772.64 and 256,916.63

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Solution

The fourth proportional to 426,780.92, 588,772.64 and 256,916.63 is: 354,433.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,780.92 : 588,772.64 = 256,916.63 : x
  2. Step 2: Convert to fraction form
    426,780.92/588,772.64 = 256,916.63/x
  3. Step 3: Cross multiply
    426,780.92x = 588,772.64 × 256,916.63
  4. Step 4: Simplify right side
    426,780.92x = 151,265,478,276.56
  5. Step 5: Solve for x
    x = 151,265,478,276.56/426,780.92
  6. Step 6: Final answer
    x = 354,433.56

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1.5x scale

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.