Home / 901,380.83-1,243,905.93-493,509.11

Finding the Fourth Proportional to 901,380.83, 1,243,905.93 and 493,509.11

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Solution

The fourth proportional to 901,380.83, 1,243,905.93 and 493,509.11 is: 681,042.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,380.83 : 1,243,905.93 = 493,509.11 : x
  2. Step 2: Convert to fraction form
    901,380.83/1,243,905.93 = 493,509.11/x
  3. Step 3: Cross multiply
    901,380.83x = 1,243,905.93 × 493,509.11
  4. Step 4: Simplify right side
    901,380.83x = 613,878,902,218.49
  5. Step 5: Solve for x
    x = 613,878,902,218.49/901,380.83
  6. Step 6: Final answer
    x = 681,042.78

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1.5x scale

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.