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Finding the Fourth Proportional to 550,388.14, 759,541.14 and 308,665.53

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Solution

The fourth proportional to 550,388.14, 759,541.14 and 308,665.53 is: 425,961.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,388.14 : 759,541.14 = 308,665.53 : x
  2. Step 2: Convert to fraction form
    550,388.14/759,541.14 = 308,665.53/x
  3. Step 3: Cross multiply
    550,388.14x = 759,541.14 × 308,665.53
  4. Step 4: Simplify right side
    550,388.14x = 234,444,168,534.90
  5. Step 5: Solve for x
    x = 234,444,168,534.90/550,388.14
  6. Step 6: Final answer
    x = 425,961.52

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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.