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Finding the Fourth Proportional to 666,956.51, 999,821.72 and 240,387.93

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Solution

The fourth proportional to 666,956.51, 999,821.72 and 240,387.93 is: 360,360.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,956.51 : 999,821.72 = 240,387.93 : x
  2. Step 2: Convert to fraction form
    666,956.51/999,821.72 = 240,387.93/x
  3. Step 3: Cross multiply
    666,956.51x = 999,821.72 × 240,387.93
  4. Step 4: Simplify right side
    666,956.51x = 240,345,073,639.84
  5. Step 5: Solve for x
    x = 240,345,073,639.84/666,956.51
  6. Step 6: Final answer
    x = 360,360.94

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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.