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Finding the Fourth Proportional to 474,004.32, 654,141.76 and 259,139.68

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Solution

The fourth proportional to 474,004.32, 654,141.76 and 259,139.68 is: 357,621.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,004.32 : 654,141.76 = 259,139.68 : x
  2. Step 2: Convert to fraction form
    474,004.32/654,141.76 = 259,139.68/x
  3. Step 3: Cross multiply
    474,004.32x = 654,141.76 × 259,139.68
  4. Step 4: Simplify right side
    474,004.32x = 169,514,086,361.04
  5. Step 5: Solve for x
    x = 169,514,086,361.04/474,004.32
  6. Step 6: Final answer
    x = 357,621.40

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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.