Home / 690,067.20-952,320.06-384,157.20

Finding the Fourth Proportional to 690,067.20, 952,320.06 and 384,157.20

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Solution

The fourth proportional to 690,067.20, 952,320.06 and 384,157.20 is: 530,152.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,067.20 : 952,320.06 = 384,157.20 : x
  2. Step 2: Convert to fraction form
    690,067.20/952,320.06 = 384,157.20/x
  3. Step 3: Cross multiply
    690,067.20x = 952,320.06 × 384,157.20
  4. Step 4: Simplify right side
    690,067.20x = 365,840,607,753.43
  5. Step 5: Solve for x
    x = 365,840,607,753.43/690,067.20
  6. Step 6: Final answer
    x = 530,152.15

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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.