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Finding the Fourth Proportional to 453,775.40, 625,745.90 and 300,760.46

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Solution

The fourth proportional to 453,775.40, 625,745.90 and 300,760.46 is: 414,741.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,775.40 : 625,745.90 = 300,760.46 : x
  2. Step 2: Convert to fraction form
    453,775.40/625,745.90 = 300,760.46/x
  3. Step 3: Cross multiply
    453,775.40x = 625,745.90 × 300,760.46
  4. Step 4: Simplify right side
    453,775.40x = 188,199,623,223.31
  5. Step 5: Solve for x
    x = 188,199,623,223.31/453,775.40
  6. Step 6: Final answer
    x = 414,741.79

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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.