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Finding the Fourth Proportional to 564,871.11, 779,521.17 and 310,222.27

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Solution

The fourth proportional to 564,871.11, 779,521.17 and 310,222.27 is: 428,106.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,871.11 : 779,521.17 = 310,222.27 : x
  2. Step 2: Convert to fraction form
    564,871.11/779,521.17 = 310,222.27/x
  3. Step 3: Cross multiply
    564,871.11x = 779,521.17 × 310,222.27
  4. Step 4: Simplify right side
    564,871.11x = 241,824,826,870.46
  5. Step 5: Solve for x
    x = 241,824,826,870.46/564,871.11
  6. Step 6: Final answer
    x = 428,106.20

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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.