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Finding the Fourth Proportional to 608,418.80, 912,690.80 and 229,658.56

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Solution

The fourth proportional to 608,418.80, 912,690.80 and 229,658.56 is: 344,511.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,418.80 : 912,690.80 = 229,658.56 : x
  2. Step 2: Convert to fraction form
    608,418.80/912,690.80 = 229,658.56/x
  3. Step 3: Cross multiply
    608,418.80x = 912,690.80 × 229,658.56
  4. Step 4: Simplify right side
    608,418.80x = 209,607,254,853.25
  5. Step 5: Solve for x
    x = 209,607,254,853.25/608,418.80
  6. Step 6: Final answer
    x = 344,511.47

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1.5x scale

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.