Home / 993,879.42-1,490,369.85-283,738.38

Finding the Fourth Proportional to 993,879.42, 1,490,369.85 and 283,738.38

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Solution

The fourth proportional to 993,879.42, 1,490,369.85 and 283,738.38 is: 425,479.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,879.42 : 1,490,369.85 = 283,738.38 : x
  2. Step 2: Convert to fraction form
    993,879.42/1,490,369.85 = 283,738.38/x
  3. Step 3: Cross multiply
    993,879.42x = 1,490,369.85 × 283,738.38
  4. Step 4: Simplify right side
    993,879.42x = 422,875,126,839.84
  5. Step 5: Solve for x
    x = 422,875,126,839.84/993,879.42
  6. Step 6: Final answer
    x = 425,479.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.