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Finding the Fourth Proportional to 606,442.20, 908,885.70 and 290,218.20

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Solution

The fourth proportional to 606,442.20, 908,885.70 and 290,218.20 is: 434,955.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,442.20 : 908,885.70 = 290,218.20 : x
  2. Step 2: Convert to fraction form
    606,442.20/908,885.70 = 290,218.20/x
  3. Step 3: Cross multiply
    606,442.20x = 908,885.70 × 290,218.20
  4. Step 4: Simplify right side
    606,442.20x = 263,775,171,859.74
  5. Step 5: Solve for x
    x = 263,775,171,859.74/606,442.20
  6. Step 6: Final answer
    x = 434,955.17

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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.