Home / 818,538.36-1,129,433.02-455,953.20

Finding the Fourth Proportional to 818,538.36, 1,129,433.02 and 455,953.20

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Solution

The fourth proportional to 818,538.36, 1,129,433.02 and 455,953.20 is: 629,131.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,538.36 : 1,129,433.02 = 455,953.20 : x
  2. Step 2: Convert to fraction form
    818,538.36/1,129,433.02 = 455,953.20/x
  3. Step 3: Cross multiply
    818,538.36x = 1,129,433.02 × 455,953.20
  4. Step 4: Simplify right side
    818,538.36x = 514,968,599,654.66
  5. Step 5: Solve for x
    x = 514,968,599,654.66/818,538.36
  6. Step 6: Final answer
    x = 629,131.91

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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.