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Finding the Fourth Proportional to 608,569.14, 912,874.53 and 209,206.50

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Solution

The fourth proportional to 608,569.14, 912,874.53 and 209,206.50 is: 313,816.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,569.14 : 912,874.53 = 209,206.50 : x
  2. Step 2: Convert to fraction form
    608,569.14/912,874.53 = 209,206.50/x
  3. Step 3: Cross multiply
    608,569.14x = 912,874.53 × 209,206.50
  4. Step 4: Simplify right side
    608,569.14x = 190,979,285,360.45
  5. Step 5: Solve for x
    x = 190,979,285,360.45/608,569.14
  6. Step 6: Final answer
    x = 313,816.91

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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.