Home / 1,002,550.82-1,503,225.58-319,142.40

Finding the Fourth Proportional to 1,002,550.82, 1,503,225.58 and 319,142.40

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Solution

The fourth proportional to 1,002,550.82, 1,503,225.58 and 319,142.40 is: 478,522.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,002,550.82 : 1,503,225.58 = 319,142.40 : x
  2. Step 2: Convert to fraction form
    1,002,550.82/1,503,225.58 = 319,142.40/x
  3. Step 3: Cross multiply
    1,002,550.82x = 1,503,225.58 × 319,142.40
  4. Step 4: Simplify right side
    1,002,550.82x = 479,743,019,342.59
  5. Step 5: Solve for x
    x = 479,743,019,342.59/1,002,550.82
  6. Step 6: Final answer
    x = 478,522.39

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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.