Home / 400,775.05-553,068.43-219,498.27

Finding the Fourth Proportional to 400,775.05, 553,068.43 and 219,498.27

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Solution

The fourth proportional to 400,775.05, 553,068.43 and 219,498.27 is: 302,906.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,775.05 : 553,068.43 = 219,498.27 : x
  2. Step 2: Convert to fraction form
    400,775.05/553,068.43 = 219,498.27/x
  3. Step 3: Cross multiply
    400,775.05x = 553,068.43 × 219,498.27
  4. Step 4: Simplify right side
    400,775.05x = 121,397,563,576.62
  5. Step 5: Solve for x
    x = 121,397,563,576.62/400,775.05
  6. Step 6: Final answer
    x = 302,906.99

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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.