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Finding the Fourth Proportional to 618,375.77, 853,448.72 and 346,462.07

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Solution

The fourth proportional to 618,375.77, 853,448.72 and 346,462.07 is: 478,168.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,375.77 : 853,448.72 = 346,462.07 : x
  2. Step 2: Convert to fraction form
    618,375.77/853,448.72 = 346,462.07/x
  3. Step 3: Cross multiply
    618,375.77x = 853,448.72 × 346,462.07
  4. Step 4: Simplify right side
    618,375.77x = 295,687,610,571.36
  5. Step 5: Solve for x
    x = 295,687,610,571.36/618,375.77
  6. Step 6: Final answer
    x = 478,168.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.