Home / 829,729.44-1,145,041.20-490,196.88

Finding the Fourth Proportional to 829,729.44, 1,145,041.20 and 490,196.88

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Solution

The fourth proportional to 829,729.44, 1,145,041.20 and 490,196.88 is: 676,480.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,729.44 : 1,145,041.20 = 490,196.88 : x
  2. Step 2: Convert to fraction form
    829,729.44/1,145,041.20 = 490,196.88/x
  3. Step 3: Cross multiply
    829,729.44x = 1,145,041.20 × 490,196.88
  4. Step 4: Simplify right side
    829,729.44x = 561,295,623,711.46
  5. Step 5: Solve for x
    x = 561,295,623,711.46/829,729.44
  6. Step 6: Final answer
    x = 676,480.30

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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.