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Finding the Fourth Proportional to 774,660.20, 1,068,855.94 and 468,728.97

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Solution

The fourth proportional to 774,660.20, 1,068,855.94 and 468,728.97 is: 646,740.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,660.20 : 1,068,855.94 = 468,728.97 : x
  2. Step 2: Convert to fraction form
    774,660.20/1,068,855.94 = 468,728.97/x
  3. Step 3: Cross multiply
    774,660.20x = 1,068,855.94 × 468,728.97
  4. Step 4: Simplify right side
    774,660.20x = 501,003,741,490.94
  5. Step 5: Solve for x
    x = 501,003,741,490.94/774,660.20
  6. Step 6: Final answer
    x = 646,740.00

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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.