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Finding the Fourth Proportional to 664,268.32, 916,712.40 and 362,478.88

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Solution

The fourth proportional to 664,268.32, 916,712.40 and 362,478.88 is: 500,232.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,268.32 : 916,712.40 = 362,478.88 : x
  2. Step 2: Convert to fraction form
    664,268.32/916,712.40 = 362,478.88/x
  3. Step 3: Cross multiply
    664,268.32x = 916,712.40 × 362,478.88
  4. Step 4: Simplify right side
    664,268.32x = 332,288,884,034.11
  5. Step 5: Solve for x
    x = 332,288,884,034.11/664,268.32
  6. Step 6: Final answer
    x = 500,232.92

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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.