Home / 411,864.64-617,814.21-145,627.36

Finding the Fourth Proportional to 411,864.64, 617,814.21 and 145,627.36

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Solution

The fourth proportional to 411,864.64, 617,814.21 and 145,627.36 is: 218,447.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,864.64 : 617,814.21 = 145,627.36 : x
  2. Step 2: Convert to fraction form
    411,864.64/617,814.21 = 145,627.36/x
  3. Step 3: Cross multiply
    411,864.64x = 617,814.21 × 145,627.36
  4. Step 4: Simplify right side
    411,864.64x = 89,970,652,372.79
  5. Step 5: Solve for x
    x = 89,970,652,372.79/411,864.64
  6. Step 6: Final answer
    x = 218,447.14

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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.