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Finding the Fourth Proportional to 688,597.28, 950,260.56 and 378,506.96

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Solution

The fourth proportional to 688,597.28, 950,260.56 and 378,506.96 is: 522,337.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,597.28 : 950,260.56 = 378,506.96 : x
  2. Step 2: Convert to fraction form
    688,597.28/950,260.56 = 378,506.96/x
  3. Step 3: Cross multiply
    688,597.28x = 950,260.56 × 378,506.96
  4. Step 4: Simplify right side
    688,597.28x = 359,680,235,773.50
  5. Step 5: Solve for x
    x = 359,680,235,773.50/688,597.28
  6. Step 6: Final answer
    x = 522,337.58

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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.