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Finding the Fourth Proportional to 506,676.78, 698,937.45 and 325,416.30

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Solution

The fourth proportional to 506,676.78, 698,937.45 and 325,416.30 is: 448,896.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,676.78 : 698,937.45 = 325,416.30 : x
  2. Step 2: Convert to fraction form
    506,676.78/698,937.45 = 325,416.30/x
  3. Step 3: Cross multiply
    506,676.78x = 698,937.45 × 325,416.30
  4. Step 4: Simplify right side
    506,676.78x = 227,445,638,910.44
  5. Step 5: Solve for x
    x = 227,445,638,910.44/506,676.78
  6. Step 6: Final answer
    x = 448,896.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.