Home / 808,922.80-1,213,643.40-542,983.60

Finding the Fourth Proportional to 808,922.80, 1,213,643.40 and 542,983.60

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Solution

The fourth proportional to 808,922.80, 1,213,643.40 and 542,983.60 is: 814,649.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,922.80 : 1,213,643.40 = 542,983.60 : x
  2. Step 2: Convert to fraction form
    808,922.80/1,213,643.40 = 542,983.60/x
  3. Step 3: Cross multiply
    808,922.80x = 1,213,643.40 × 542,983.60
  4. Step 4: Simplify right side
    808,922.80x = 658,988,462,448.24
  5. Step 5: Solve for x
    x = 658,988,462,448.24/808,922.80
  6. Step 6: Final answer
    x = 814,649.39

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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.