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Finding the Fourth Proportional to 575,769.84, 794,562.21 and 321,115.56

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Solution

The fourth proportional to 575,769.84, 794,562.21 and 321,115.56 is: 443,139.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,769.84 : 794,562.21 = 321,115.56 : x
  2. Step 2: Convert to fraction form
    575,769.84/794,562.21 = 321,115.56/x
  3. Step 3: Cross multiply
    575,769.84x = 794,562.21 × 321,115.56
  4. Step 4: Simplify right side
    575,769.84x = 255,146,289,018.99
  5. Step 5: Solve for x
    x = 255,146,289,018.99/575,769.84
  6. Step 6: Final answer
    x = 443,139.38

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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.