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Finding the Fourth Proportional to 650,178.68, 897,426.94 and 378,299.10

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Solution

The fourth proportional to 650,178.68, 897,426.94 and 378,299.10 is: 522,157.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,178.68 : 897,426.94 = 378,299.10 : x
  2. Step 2: Convert to fraction form
    650,178.68/897,426.94 = 378,299.10/x
  3. Step 3: Cross multiply
    650,178.68x = 897,426.94 × 378,299.10
  4. Step 4: Simplify right side
    650,178.68x = 339,495,803,717.75
  5. Step 5: Solve for x
    x = 339,495,803,717.75/650,178.68
  6. Step 6: Final answer
    x = 522,157.70

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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.