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Finding the Fourth Proportional to 474,866.37, 655,255.55 and 378,315.10

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Solution

The fourth proportional to 474,866.37, 655,255.55 and 378,315.10 is: 522,027.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,866.37 : 655,255.55 = 378,315.10 : x
  2. Step 2: Convert to fraction form
    474,866.37/655,255.55 = 378,315.10/x
  3. Step 3: Cross multiply
    474,866.37x = 655,255.55 × 378,315.10
  4. Step 4: Simplify right side
    474,866.37x = 247,893,067,032.23
  5. Step 5: Solve for x
    x = 247,893,067,032.23/474,866.37
  6. Step 6: Final answer
    x = 522,027.01

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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.