Home / 1,220,832-1,684,748.16-684,288

Finding the Fourth Proportional to 1,220,832, 1,684,748.16 and 684,288

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Solution

The fourth proportional to 1,220,832, 1,684,748.16 and 684,288 is: 944,317.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,832 : 1,684,748.16 = 684,288 : x
  2. Step 2: Convert to fraction form
    1,220,832/1,684,748.16 = 684,288/x
  3. Step 3: Cross multiply
    1,220,832x = 1,684,748.16 × 684,288
  4. Step 4: Simplify right side
    1,220,832x = 1,152,852,948,910.08
  5. Step 5: Solve for x
    x = 1,152,852,948,910.08/1,220,832
  6. Step 6: Final answer
    x = 944,317.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.