Home / 830,672.20-1,246,008.30-620,720.20

Finding the Fourth Proportional to 830,672.20, 1,246,008.30 and 620,720.20

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Solution

The fourth proportional to 830,672.20, 1,246,008.30 and 620,720.20 is: 931,080.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,672.20 : 1,246,008.30 = 620,720.20 : x
  2. Step 2: Convert to fraction form
    830,672.20/1,246,008.30 = 620,720.20/x
  3. Step 3: Cross multiply
    830,672.20x = 1,246,008.30 × 620,720.20
  4. Step 4: Simplify right side
    830,672.20x = 773,422,521,177.66
  5. Step 5: Solve for x
    x = 773,422,521,177.66/830,672.20
  6. Step 6: Final answer
    x = 931,080.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.