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Finding the Fourth Proportional to 604,928.20, 907,392.30 and 206,019.40

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Solution

The fourth proportional to 604,928.20, 907,392.30 and 206,019.40 is: 309,029.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,928.20 : 907,392.30 = 206,019.40 : x
  2. Step 2: Convert to fraction form
    604,928.20/907,392.30 = 206,019.40/x
  3. Step 3: Cross multiply
    604,928.20x = 907,392.30 × 206,019.40
  4. Step 4: Simplify right side
    604,928.20x = 186,940,417,210.62
  5. Step 5: Solve for x
    x = 186,940,417,210.62/604,928.20
  6. Step 6: Final answer
    x = 309,029.10

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Similar ratio
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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.