Home / 890,813.70-1,336,220.55-839,492.10

Finding the Fourth Proportional to 890,813.70, 1,336,220.55 and 839,492.10

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Solution

The fourth proportional to 890,813.70, 1,336,220.55 and 839,492.10 is: 1,259,238.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,813.70 : 1,336,220.55 = 839,492.10 : x
  2. Step 2: Convert to fraction form
    890,813.70/1,336,220.55 = 839,492.10/x
  3. Step 3: Cross multiply
    890,813.70x = 1,336,220.55 × 839,492.10
  4. Step 4: Simplify right side
    890,813.70x = 1,121,746,595,582.66
  5. Step 5: Solve for x
    x = 1,121,746,595,582.66/890,813.70
  6. Step 6: Final answer
    x = 1,259,238.15

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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.