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Finding the Fourth Proportional to 606,436.20, 908,888.85 and 306,999.45

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Solution

The fourth proportional to 606,436.20, 908,888.85 and 306,999.45 is: 460,111.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,436.20 : 908,888.85 = 306,999.45 : x
  2. Step 2: Convert to fraction form
    606,436.20/908,888.85 = 306,999.45/x
  3. Step 3: Cross multiply
    606,436.20x = 908,888.85 × 306,999.45
  4. Step 4: Simplify right side
    606,436.20x = 279,028,377,061.13
  5. Step 5: Solve for x
    x = 279,028,377,061.13/606,436.20
  6. Step 6: Final answer
    x = 460,111.68

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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.