Home / 818,421.58-1,129,030.61-635,884.30

Finding the Fourth Proportional to 818,421.58, 1,129,030.61 and 635,884.30

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Solution

The fourth proportional to 818,421.58, 1,129,030.61 and 635,884.30 is: 877,216.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,421.58 : 1,129,030.61 = 635,884.30 : x
  2. Step 2: Convert to fraction form
    818,421.58/1,129,030.61 = 635,884.30/x
  3. Step 3: Cross multiply
    818,421.58x = 1,129,030.61 × 635,884.30
  4. Step 4: Simplify right side
    818,421.58x = 717,932,839,118.42
  5. Step 5: Solve for x
    x = 717,932,839,118.42/818,421.58
  6. Step 6: Final answer
    x = 877,216.41

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1.5x scale

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.