Home / 830,832.80-1,246,249.20-515,645.60

Finding the Fourth Proportional to 830,832.80, 1,246,249.20 and 515,645.60

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Solution

The fourth proportional to 830,832.80, 1,246,249.20 and 515,645.60 is: 773,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,832.80 : 1,246,249.20 = 515,645.60 : x
  2. Step 2: Convert to fraction form
    830,832.80/1,246,249.20 = 515,645.60/x
  3. Step 3: Cross multiply
    830,832.80x = 1,246,249.20 × 515,645.60
  4. Step 4: Simplify right side
    830,832.80x = 642,622,916,483.52
  5. Step 5: Solve for x
    x = 642,622,916,483.52/830,832.80
  6. Step 6: Final answer
    x = 773,468.40

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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.