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Finding the Fourth Proportional to 618,970.16, 928,722.49 and 334,860.83

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Solution

The fourth proportional to 618,970.16, 928,722.49 and 334,860.83 is: 502,435.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,970.16 : 928,722.49 = 334,860.83 : x
  2. Step 2: Convert to fraction form
    618,970.16/928,722.49 = 334,860.83/x
  3. Step 3: Cross multiply
    618,970.16x = 928,722.49 × 334,860.83
  4. Step 4: Simplify right side
    618,970.16x = 310,992,777,523.15
  5. Step 5: Solve for x
    x = 310,992,777,523.15/618,970.16
  6. Step 6: Final answer
    x = 502,435.82

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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.