Home / 743,636.16-1,115,254.98-322,812

Finding the Fourth Proportional to 743,636.16, 1,115,254.98 and 322,812

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Solution

The fourth proportional to 743,636.16, 1,115,254.98 and 322,812 is: 484,131.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,636.16 : 1,115,254.98 = 322,812 : x
  2. Step 2: Convert to fraction form
    743,636.16/1,115,254.98 = 322,812/x
  3. Step 3: Cross multiply
    743,636.16x = 1,115,254.98 × 322,812
  4. Step 4: Simplify right side
    743,636.16x = 360,017,690,603.76
  5. Step 5: Solve for x
    x = 360,017,690,603.76/743,636.16
  6. Step 6: Final answer
    x = 484,131.50

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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.