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Finding the Fourth Proportional to 610,502.88, 915,910.08 and 189,782.40

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Solution

The fourth proportional to 610,502.88, 915,910.08 and 189,782.40 is: 284,722.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,502.88 : 915,910.08 = 189,782.40 : x
  2. Step 2: Convert to fraction form
    610,502.88/915,910.08 = 189,782.40/x
  3. Step 3: Cross multiply
    610,502.88x = 915,910.08 × 189,782.40
  4. Step 4: Simplify right side
    610,502.88x = 173,823,613,166.59
  5. Step 5: Solve for x
    x = 173,823,613,166.59/610,502.88
  6. Step 6: Final answer
    x = 284,722.02

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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.