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Finding the Fourth Proportional to 682,842.56, 942,385.28 and 376,973.76

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Solution

The fourth proportional to 682,842.56, 942,385.28 and 376,973.76 is: 520,258.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,842.56 : 942,385.28 = 376,973.76 : x
  2. Step 2: Convert to fraction form
    682,842.56/942,385.28 = 376,973.76/x
  3. Step 3: Cross multiply
    682,842.56x = 942,385.28 × 376,973.76
  4. Step 4: Simplify right side
    682,842.56x = 355,254,522,370.25
  5. Step 5: Solve for x
    x = 355,254,522,370.25/682,842.56
  6. Step 6: Final answer
    x = 520,258.32

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Double scale
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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.