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Finding the Fourth Proportional to 1,008,900, 1,509,611.85 and 808,612.92

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Solution

The fourth proportional to 1,008,900, 1,509,611.85 and 808,612.92 is: 1,209,923.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,900 : 1,509,611.85 = 808,612.92 : x
  2. Step 2: Convert to fraction form
    1,008,900/1,509,611.85 = 808,612.92/x
  3. Step 3: Cross multiply
    1,008,900x = 1,509,611.85 × 808,612.92
  4. Step 4: Simplify right side
    1,008,900x = 1,220,691,646,095.10
  5. Step 5: Solve for x
    x = 1,220,691,646,095.10/1,008,900
  6. Step 6: Final answer
    x = 1,209,923.33

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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.