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Finding the Fourth Proportional to 564,929.52, 779,621.40 and 310,304.40

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Solution

The fourth proportional to 564,929.52, 779,621.40 and 310,304.40 is: 428,230.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,929.52 : 779,621.40 = 310,304.40 : x
  2. Step 2: Convert to fraction form
    564,929.52/779,621.40 = 310,304.40/x
  3. Step 3: Cross multiply
    564,929.52x = 779,621.40 × 310,304.40
  4. Step 4: Simplify right side
    564,929.52x = 241,919,950,754.16
  5. Step 5: Solve for x
    x = 241,919,950,754.16/564,929.52
  6. Step 6: Final answer
    x = 428,230.32

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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.