Home / 749,218-1,123,828.14-305,986

Finding the Fourth Proportional to 749,218, 1,123,828.14 and 305,986

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Solution

The fourth proportional to 749,218, 1,123,828.14 and 305,986 is: 458,979.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,218 : 1,123,828.14 = 305,986 : x
  2. Step 2: Convert to fraction form
    749,218/1,123,828.14 = 305,986/x
  3. Step 3: Cross multiply
    749,218x = 1,123,828.14 × 305,986
  4. Step 4: Simplify right side
    749,218x = 343,875,677,246.04
  5. Step 5: Solve for x
    x = 343,875,677,246.04/749,218
  6. Step 6: Final answer
    x = 458,979.47

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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.