Home / 808,971.80-1,213,457.70-759,108.20

Finding the Fourth Proportional to 808,971.80, 1,213,457.70 and 759,108.20

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Solution

The fourth proportional to 808,971.80, 1,213,457.70 and 759,108.20 is: 1,138,662.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,971.80 : 1,213,457.70 = 759,108.20 : x
  2. Step 2: Convert to fraction form
    808,971.80/1,213,457.70 = 759,108.20/x
  3. Step 3: Cross multiply
    808,971.80x = 1,213,457.70 × 759,108.20
  4. Step 4: Simplify right side
    808,971.80x = 921,145,690,423.14
  5. Step 5: Solve for x
    x = 921,145,690,423.14/808,971.80
  6. Step 6: Final answer
    x = 1,138,662.30

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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.