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Finding the Fourth Proportional to 688,425.74, 950,020.62 and 378,333.44

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Solution

The fourth proportional to 688,425.74, 950,020.62 and 378,333.44 is: 522,096.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,425.74 : 950,020.62 = 378,333.44 : x
  2. Step 2: Convert to fraction form
    688,425.74/950,020.62 = 378,333.44/x
  3. Step 3: Cross multiply
    688,425.74x = 950,020.62 × 378,333.44
  4. Step 4: Simplify right side
    688,425.74x = 359,424,569,235.53
  5. Step 5: Solve for x
    x = 359,424,569,235.53/688,425.74
  6. Step 6: Final answer
    x = 522,096.35

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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.