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Finding the Fourth Proportional to 742,758.76, 1,025,019.62 and 403,227

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Solution

The fourth proportional to 742,758.76, 1,025,019.62 and 403,227 is: 556,460.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,758.76 : 1,025,019.62 = 403,227 : x
  2. Step 2: Convert to fraction form
    742,758.76/1,025,019.62 = 403,227/x
  3. Step 3: Cross multiply
    742,758.76x = 1,025,019.62 × 403,227
  4. Step 4: Simplify right side
    742,758.76x = 413,315,586,313.74
  5. Step 5: Solve for x
    x = 413,315,586,313.74/742,758.76
  6. Step 6: Final answer
    x = 556,460.06

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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.