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Finding the Fourth Proportional to 508,443.08, 701,649.51 and 279,004.20

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Solution

The fourth proportional to 508,443.08, 701,649.51 and 279,004.20 is: 385,024.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,443.08 : 701,649.51 = 279,004.20 : x
  2. Step 2: Convert to fraction form
    508,443.08/701,649.51 = 279,004.20/x
  3. Step 3: Cross multiply
    508,443.08x = 701,649.51 × 279,004.20
  4. Step 4: Simplify right side
    508,443.08x = 195,763,160,217.94
  5. Step 5: Solve for x
    x = 195,763,160,217.94/508,443.08
  6. Step 6: Final answer
    x = 385,024.74

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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.