Home / 810,494.88-1,118,486.40-442,979.42

Finding the Fourth Proportional to 810,494.88, 1,118,486.40 and 442,979.42

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Solution

The fourth proportional to 810,494.88, 1,118,486.40 and 442,979.42 is: 611,313.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,494.88 : 1,118,486.40 = 442,979.42 : x
  2. Step 2: Convert to fraction form
    810,494.88/1,118,486.40 = 442,979.42/x
  3. Step 3: Cross multiply
    810,494.88x = 1,118,486.40 × 442,979.42
  4. Step 4: Simplify right side
    810,494.88x = 495,466,451,157.46
  5. Step 5: Solve for x
    x = 495,466,451,157.46/810,494.88
  6. Step 6: Final answer
    x = 611,313.49

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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.