Home / 1,002,489.35-1,503,133.47-319,081.01

Finding the Fourth Proportional to 1,002,489.35, 1,503,133.47 and 319,081.01

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Solution

The fourth proportional to 1,002,489.35, 1,503,133.47 and 319,081.01 is: 478,430.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,002,489.35 : 1,503,133.47 = 319,081.01 : x
  2. Step 2: Convert to fraction form
    1,002,489.35/1,503,133.47 = 319,081.01/x
  3. Step 3: Cross multiply
    1,002,489.35x = 1,503,133.47 × 319,081.01
  4. Step 4: Simplify right side
    1,002,489.35x = 479,621,345,772.41
  5. Step 5: Solve for x
    x = 479,621,345,772.41/1,002,489.35
  6. Step 6: Final answer
    x = 478,430.37

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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.