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Finding the Fourth Proportional to 604,928.70, 908,049.15 and 339,208.20

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Solution

The fourth proportional to 604,928.70, 908,049.15 and 339,208.20 is: 509,180.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,928.70 : 908,049.15 = 339,208.20 : x
  2. Step 2: Convert to fraction form
    604,928.70/908,049.15 = 339,208.20/x
  3. Step 3: Cross multiply
    604,928.70x = 908,049.15 × 339,208.20
  4. Step 4: Simplify right side
    604,928.70x = 308,017,717,683.03
  5. Step 5: Solve for x
    x = 308,017,717,683.03/604,928.70
  6. Step 6: Final answer
    x = 509,180.20

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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.