Home / 904,916.90-1,356,911.04-478,682.78

Finding the Fourth Proportional to 904,916.90, 1,356,911.04 and 478,682.78

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Solution

The fourth proportional to 904,916.90, 1,356,911.04 and 478,682.78 is: 717,778.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,916.90 : 1,356,911.04 = 478,682.78 : x
  2. Step 2: Convert to fraction form
    904,916.90/1,356,911.04 = 478,682.78/x
  3. Step 3: Cross multiply
    904,916.90x = 1,356,911.04 × 478,682.78
  4. Step 4: Simplify right side
    904,916.90x = 649,529,948,839.89
  5. Step 5: Solve for x
    x = 649,529,948,839.89/904,916.90
  6. Step 6: Final answer
    x = 717,778.56

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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.