Home / 1,521,146.66-2,281,571.42-399,215.66

Finding the Fourth Proportional to 1,521,146.66, 2,281,571.42 and 399,215.66

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Solution

The fourth proportional to 1,521,146.66, 2,281,571.42 and 399,215.66 is: 598,784.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,146.66 : 2,281,571.42 = 399,215.66 : x
  2. Step 2: Convert to fraction form
    1,521,146.66/2,281,571.42 = 399,215.66/x
  3. Step 3: Cross multiply
    1,521,146.66x = 2,281,571.42 × 399,215.66
  4. Step 4: Simplify right side
    1,521,146.66x = 910,839,026,868.50
  5. Step 5: Solve for x
    x = 910,839,026,868.50/1,521,146.66
  6. Step 6: Final answer
    x = 598,784.49

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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.