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Finding the Fourth Proportional to 492,785.70, 680,043.69 and 266,430.66

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Solution

The fourth proportional to 492,785.70, 680,043.69 and 266,430.66 is: 367,674.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,785.70 : 680,043.69 = 266,430.66 : x
  2. Step 2: Convert to fraction form
    492,785.70/680,043.69 = 266,430.66/x
  3. Step 3: Cross multiply
    492,785.70x = 680,043.69 × 266,430.66
  4. Step 4: Simplify right side
    492,785.70x = 181,184,489,155.54
  5. Step 5: Solve for x
    x = 181,184,489,155.54/492,785.70
  6. Step 6: Final answer
    x = 367,674.00

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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.