Home / 346,921.31-520,835.18-278,569.37

Finding the Fourth Proportional to 346,921.31, 520,835.18 and 278,569.37

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Solution

The fourth proportional to 346,921.31, 520,835.18 and 278,569.37 is: 418,217.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,921.31 : 520,835.18 = 278,569.37 : x
  2. Step 2: Convert to fraction form
    346,921.31/520,835.18 = 278,569.37/x
  3. Step 3: Cross multiply
    346,921.31x = 520,835.18 × 278,569.37
  4. Step 4: Simplify right side
    346,921.31x = 145,088,723,969.41
  5. Step 5: Solve for x
    x = 145,088,723,969.41/346,921.31
  6. Step 6: Final answer
    x = 418,217.96

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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.