Home / 1,002,548.82-1,503,222.58-319,140.40

Finding the Fourth Proportional to 1,002,548.82, 1,503,222.58 and 319,140.40

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Solution

The fourth proportional to 1,002,548.82, 1,503,222.58 and 319,140.40 is: 478,519.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,002,548.82 : 1,503,222.58 = 319,140.40 : x
  2. Step 2: Convert to fraction form
    1,002,548.82/1,503,222.58 = 319,140.40/x
  3. Step 3: Cross multiply
    1,002,548.82x = 1,503,222.58 × 319,140.40
  4. Step 4: Simplify right side
    1,002,548.82x = 479,739,055,470.23
  5. Step 5: Solve for x
    x = 479,739,055,470.23/1,002,548.82
  6. Step 6: Final answer
    x = 478,519.40

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Double scale
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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.