Home / 818,326.77-1,129,246.46-450,732.36

Finding the Fourth Proportional to 818,326.77, 1,129,246.46 and 450,732.36

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Solution

The fourth proportional to 818,326.77, 1,129,246.46 and 450,732.36 is: 621,986.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,326.77 : 1,129,246.46 = 450,732.36 : x
  2. Step 2: Convert to fraction form
    818,326.77/1,129,246.46 = 450,732.36/x
  3. Step 3: Cross multiply
    818,326.77x = 1,129,246.46 × 450,732.36
  4. Step 4: Simplify right side
    818,326.77x = 508,987,921,937.45
  5. Step 5: Solve for x
    x = 508,987,921,937.45/818,326.77
  6. Step 6: Final answer
    x = 621,986.16

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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.