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Finding the Fourth Proportional to 834,958.50, 1,252,641.75 and 266,339.69

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Solution

The fourth proportional to 834,958.50, 1,252,641.75 and 266,339.69 is: 399,574.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,958.50 : 1,252,641.75 = 266,339.69 : x
  2. Step 2: Convert to fraction form
    834,958.50/1,252,641.75 = 266,339.69/x
  3. Step 3: Cross multiply
    834,958.50x = 1,252,641.75 × 266,339.69
  4. Step 4: Simplify right side
    834,958.50x = 333,628,219,857.59
  5. Step 5: Solve for x
    x = 333,628,219,857.59/834,958.50
  6. Step 6: Final answer
    x = 399,574.62

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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.