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Finding the Fourth Proportional to 618,970.84, 928,723.52 and 334,861.52

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Solution

The fourth proportional to 618,970.84, 928,723.52 and 334,861.52 is: 502,436.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,970.84 : 928,723.52 = 334,861.52 : x
  2. Step 2: Convert to fraction form
    618,970.84/928,723.52 = 334,861.52/x
  3. Step 3: Cross multiply
    618,970.84x = 928,723.52 × 334,861.52
  4. Step 4: Simplify right side
    618,970.84x = 310,993,769,566.95
  5. Step 5: Solve for x
    x = 310,993,769,566.95/618,970.84
  6. Step 6: Final answer
    x = 502,436.87

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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.