Home / 407,017.17-561,717.33-225,787.53

Finding the Fourth Proportional to 407,017.17, 561,717.33 and 225,787.53

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Solution

The fourth proportional to 407,017.17, 561,717.33 and 225,787.53 is: 311,605.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,017.17 : 561,717.33 = 225,787.53 : x
  2. Step 2: Convert to fraction form
    407,017.17/561,717.33 = 225,787.53/x
  3. Step 3: Cross multiply
    407,017.17x = 561,717.33 × 225,787.53
  4. Step 4: Simplify right side
    407,017.17x = 126,828,768,498.90
  5. Step 5: Solve for x
    x = 126,828,768,498.90/407,017.17
  6. Step 6: Final answer
    x = 311,605.45

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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.