Home / 618,719.42-853,818.57-360,579.90

Finding the Fourth Proportional to 618,719.42, 853,818.57 and 360,579.90

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Solution

The fourth proportional to 618,719.42, 853,818.57 and 360,579.90 is: 497,591.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,719.42 : 853,818.57 = 360,579.90 : x
  2. Step 2: Convert to fraction form
    618,719.42/853,818.57 = 360,579.90/x
  3. Step 3: Cross multiply
    618,719.42x = 853,818.57 × 360,579.90
  4. Step 4: Simplify right side
    618,719.42x = 307,869,814,588.74
  5. Step 5: Solve for x
    x = 307,869,814,588.74/618,719.42
  6. Step 6: Final answer
    x = 497,591.97

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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.