Home / 819,514.11-1,130,871.72-456,922.47

Finding the Fourth Proportional to 819,514.11, 1,130,871.72 and 456,922.47

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Solution

The fourth proportional to 819,514.11, 1,130,871.72 and 456,922.47 is: 630,520.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,514.11 : 1,130,871.72 = 456,922.47 : x
  2. Step 2: Convert to fraction form
    819,514.11/1,130,871.72 = 456,922.47/x
  3. Step 3: Cross multiply
    819,514.11x = 1,130,871.72 × 456,922.47
  4. Step 4: Simplify right side
    819,514.11x = 516,720,699,555.55
  5. Step 5: Solve for x
    x = 516,720,699,555.55/819,514.11
  6. Step 6: Final answer
    x = 630,520.81

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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.