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Finding the Fourth Proportional to 827,350.70, 1,239,877.86 and 376,970.84

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Solution

The fourth proportional to 827,350.70, 1,239,877.86 and 376,970.84 is: 564,933.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,350.70 : 1,239,877.86 = 376,970.84 : x
  2. Step 2: Convert to fraction form
    827,350.70/1,239,877.86 = 376,970.84/x
  3. Step 3: Cross multiply
    827,350.70x = 1,239,877.86 × 376,970.84
  4. Step 4: Simplify right side
    827,350.70x = 467,397,798,381.60
  5. Step 5: Solve for x
    x = 467,397,798,381.60/827,350.70
  6. Step 6: Final answer
    x = 564,933.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.