Home / 1,019,408.38-1,528,102.53-478,696.73

Finding the Fourth Proportional to 1,019,408.38, 1,528,102.53 and 478,696.73

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Solution

The fourth proportional to 1,019,408.38, 1,528,102.53 and 478,696.73 is: 717,570.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,408.38 : 1,528,102.53 = 478,696.73 : x
  2. Step 2: Convert to fraction form
    1,019,408.38/1,528,102.53 = 478,696.73/x
  3. Step 3: Cross multiply
    1,019,408.38x = 1,528,102.53 × 478,696.73
  4. Step 4: Simplify right side
    1,019,408.38x = 731,497,684,215.73
  5. Step 5: Solve for x
    x = 731,497,684,215.73/1,019,408.38
  6. Step 6: Final answer
    x = 717,570.80

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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.