Home / 1,812,573.20-2,718,859.80-1,215,376.40

Finding the Fourth Proportional to 1,812,573.20, 2,718,859.80 and 1,215,376.40

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Solution

The fourth proportional to 1,812,573.20, 2,718,859.80 and 1,215,376.40 is: 1,823,064.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812,573.20 : 2,718,859.80 = 1,215,376.40 : x
  2. Step 2: Convert to fraction form
    1,812,573.20/2,718,859.80 = 1,215,376.40/x
  3. Step 3: Cross multiply
    1,812,573.20x = 2,718,859.80 × 1,215,376.40
  4. Step 4: Simplify right side
    1,812,573.20x = 3,304,438,035,828.72
  5. Step 5: Solve for x
    x = 3,304,438,035,828.72/1,812,573.20
  6. Step 6: Final answer
    x = 1,823,064.60

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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.