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Finding the Fourth Proportional to 682,732.80, 942,151.68 and 380,920.32

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Solution

The fourth proportional to 682,732.80, 942,151.68 and 380,920.32 is: 525,659.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,732.80 : 942,151.68 = 380,920.32 : x
  2. Step 2: Convert to fraction form
    682,732.80/942,151.68 = 380,920.32/x
  3. Step 3: Cross multiply
    682,732.80x = 942,151.68 × 380,920.32
  4. Step 4: Simplify right side
    682,732.80x = 358,884,719,434.14
  5. Step 5: Solve for x
    x = 358,884,719,434.14/682,732.80
  6. Step 6: Final answer
    x = 525,659.12

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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.