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Finding the Fourth Proportional to 855,624, 1,178,123.60 and 759,964.56

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Solution

The fourth proportional to 855,624, 1,178,123.60 and 759,964.56 is: 1,046,408.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,624 : 1,178,123.60 = 759,964.56 : x
  2. Step 2: Convert to fraction form
    855,624/1,178,123.60 = 759,964.56/x
  3. Step 3: Cross multiply
    855,624x = 1,178,123.60 × 759,964.56
  4. Step 4: Simplify right side
    855,624x = 895,332,183,299.62
  5. Step 5: Solve for x
    x = 895,332,183,299.62/855,624
  6. Step 6: Final answer
    x = 1,046,408.45

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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.