Home / 808,250.68-1,115,364.30-445,668.40

Finding the Fourth Proportional to 808,250.68, 1,115,364.30 and 445,668.40

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Solution

The fourth proportional to 808,250.68, 1,115,364.30 and 445,668.40 is: 615,010.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,250.68 : 1,115,364.30 = 445,668.40 : x
  2. Step 2: Convert to fraction form
    808,250.68/1,115,364.30 = 445,668.40/x
  3. Step 3: Cross multiply
    808,250.68x = 1,115,364.30 × 445,668.40
  4. Step 4: Simplify right side
    808,250.68x = 497,082,622,998.12
  5. Step 5: Solve for x
    x = 497,082,622,998.12/808,250.68
  6. Step 6: Final answer
    x = 615,010.46

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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.