Home / 618,738.28-853,895.22-346,895.32

Finding the Fourth Proportional to 618,738.28, 853,895.22 and 346,895.32

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Solution

The fourth proportional to 618,738.28, 853,895.22 and 346,895.32 is: 478,735.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,738.28 : 853,895.22 = 346,895.32 : x
  2. Step 2: Convert to fraction form
    618,738.28/853,895.22 = 346,895.32/x
  3. Step 3: Cross multiply
    618,738.28x = 853,895.22 × 346,895.32
  4. Step 4: Simplify right side
    618,738.28x = 296,212,255,588.37
  5. Step 5: Solve for x
    x = 296,212,255,588.37/618,738.28
  6. Step 6: Final answer
    x = 478,735.95

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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.