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Finding the Fourth Proportional to 606,980.40, 910,470.60 and 207,488.40

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Solution

The fourth proportional to 606,980.40, 910,470.60 and 207,488.40 is: 311,232.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,980.40 : 910,470.60 = 207,488.40 : x
  2. Step 2: Convert to fraction form
    606,980.40/910,470.60 = 207,488.40/x
  3. Step 3: Cross multiply
    606,980.40x = 910,470.60 × 207,488.40
  4. Step 4: Simplify right side
    606,980.40x = 188,912,088,041.04
  5. Step 5: Solve for x
    x = 188,912,088,041.04/606,980.40
  6. Step 6: Final answer
    x = 311,232.60

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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.