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Finding the Fourth Proportional to 526,752.45, 726,922.76 and 309,091.28

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Solution

The fourth proportional to 526,752.45, 726,922.76 and 309,091.28 is: 426,548.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,752.45 : 726,922.76 = 309,091.28 : x
  2. Step 2: Convert to fraction form
    526,752.45/726,922.76 = 309,091.28/x
  3. Step 3: Cross multiply
    526,752.45x = 726,922.76 × 309,091.28
  4. Step 4: Simplify right side
    526,752.45x = 224,685,481,169.46
  5. Step 5: Solve for x
    x = 224,685,481,169.46/526,752.45
  6. Step 6: Final answer
    x = 426,548.53

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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.