Home / 828,361.80-1,242,542.70-822,456.90

Finding the Fourth Proportional to 828,361.80, 1,242,542.70 and 822,456.90

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Solution

The fourth proportional to 828,361.80, 1,242,542.70 and 822,456.90 is: 1,233,685.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,361.80 : 1,242,542.70 = 822,456.90 : x
  2. Step 2: Convert to fraction form
    828,361.80/1,242,542.70 = 822,456.90/x
  3. Step 3: Cross multiply
    828,361.80x = 1,242,542.70 × 822,456.90
  4. Step 4: Simplify right side
    828,361.80x = 1,021,937,817,159.63
  5. Step 5: Solve for x
    x = 1,021,937,817,159.63/828,361.80
  6. Step 6: Final answer
    x = 1,233,685.35

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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.