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Finding the Fourth Proportional to 372,776.61, 561,892.08 and 340,828.59

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Solution

The fourth proportional to 372,776.61, 561,892.08 and 340,828.59 is: 513,736.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,776.61 : 561,892.08 = 340,828.59 : x
  2. Step 2: Convert to fraction form
    372,776.61/561,892.08 = 340,828.59/x
  3. Step 3: Cross multiply
    372,776.61x = 561,892.08 × 340,828.59
  4. Step 4: Simplify right side
    372,776.61x = 191,508,885,358.57
  5. Step 5: Solve for x
    x = 191,508,885,358.57/372,776.61
  6. Step 6: Final answer
    x = 513,736.32

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.