Home / 915,260.30-1,372,875.73-284,174.72

Finding the Fourth Proportional to 915,260.30, 1,372,875.73 and 284,174.72

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Solution

The fourth proportional to 915,260.30, 1,372,875.73 and 284,174.72 is: 426,257.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,260.30 : 1,372,875.73 = 284,174.72 : x
  2. Step 2: Convert to fraction form
    915,260.30/1,372,875.73 = 284,174.72/x
  3. Step 3: Cross multiply
    915,260.30x = 1,372,875.73 × 284,174.72
  4. Step 4: Simplify right side
    915,260.30x = 390,136,576,167.55
  5. Step 5: Solve for x
    x = 390,136,576,167.55/915,260.30
  6. Step 6: Final answer
    x = 426,257.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.