Home / 821,748.12-1,232,857.08-485,095.92

Finding the Fourth Proportional to 821,748.12, 1,232,857.08 and 485,095.92

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Solution

The fourth proportional to 821,748.12, 1,232,857.08 and 485,095.92 is: 727,782.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,748.12 : 1,232,857.08 = 485,095.92 : x
  2. Step 2: Convert to fraction form
    821,748.12/1,232,857.08 = 485,095.92/x
  3. Step 3: Cross multiply
    821,748.12x = 1,232,857.08 × 485,095.92
  4. Step 4: Simplify right side
    821,748.12x = 598,053,939,451.11
  5. Step 5: Solve for x
    x = 598,053,939,451.11/821,748.12
  6. Step 6: Final answer
    x = 727,782.55

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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.