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Finding the Fourth Proportional to 506,720.74, 760,081.09 and 411,836.38

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Solution

The fourth proportional to 506,720.74, 760,081.09 and 411,836.38 is: 617,754.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,720.74 : 760,081.09 = 411,836.38 : x
  2. Step 2: Convert to fraction form
    506,720.74/760,081.09 = 411,836.38/x
  3. Step 3: Cross multiply
    506,720.74x = 760,081.09 × 411,836.38
  4. Step 4: Simplify right side
    506,720.74x = 313,029,044,612.05
  5. Step 5: Solve for x
    x = 313,029,044,612.05/506,720.74
  6. Step 6: Final answer
    x = 617,754.55

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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.