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Finding the Fourth Proportional to 702,425.82, 969,349.98 and 380,135.73

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Solution

The fourth proportional to 702,425.82, 969,349.98 and 380,135.73 is: 524,588.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,425.82 : 969,349.98 = 380,135.73 : x
  2. Step 2: Convert to fraction form
    702,425.82/969,349.98 = 380,135.73/x
  3. Step 3: Cross multiply
    702,425.82x = 969,349.98 × 380,135.73
  4. Step 4: Simplify right side
    702,425.82x = 368,484,562,272.79
  5. Step 5: Solve for x
    x = 368,484,562,272.79/702,425.82
  6. Step 6: Final answer
    x = 524,588.58

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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.