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Finding the Fourth Proportional to 606,977.10, 910,465.65 and 207,630.90

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Solution

The fourth proportional to 606,977.10, 910,465.65 and 207,630.90 is: 311,446.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,977.10 : 910,465.65 = 207,630.90 : x
  2. Step 2: Convert to fraction form
    606,977.10/910,465.65 = 207,630.90/x
  3. Step 3: Cross multiply
    606,977.10x = 910,465.65 × 207,630.90
  4. Step 4: Simplify right side
    606,977.10x = 189,040,802,328.59
  5. Step 5: Solve for x
    x = 189,040,802,328.59/606,977.10
  6. Step 6: Final answer
    x = 311,446.35

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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.