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Finding the Fourth Proportional to 605,040.80, 907,561.20 and 575,516.30

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Solution

The fourth proportional to 605,040.80, 907,561.20 and 575,516.30 is: 863,274.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,040.80 : 907,561.20 = 575,516.30 : x
  2. Step 2: Convert to fraction form
    605,040.80/907,561.20 = 575,516.30/x
  3. Step 3: Cross multiply
    605,040.80x = 907,561.20 × 575,516.30
  4. Step 4: Simplify right side
    605,040.80x = 522,316,263,847.56
  5. Step 5: Solve for x
    x = 522,316,263,847.56/605,040.80
  6. Step 6: Final answer
    x = 863,274.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.