Home / 579,340.87-867,890.39-325,851.17

Finding the Fourth Proportional to 579,340.87, 867,890.39 and 325,851.17

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Solution

The fourth proportional to 579,340.87, 867,890.39 and 325,851.17 is: 488,146.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,340.87 : 867,890.39 = 325,851.17 : x
  2. Step 2: Convert to fraction form
    579,340.87/867,890.39 = 325,851.17/x
  3. Step 3: Cross multiply
    579,340.87x = 867,890.39 × 325,851.17
  4. Step 4: Simplify right side
    579,340.87x = 282,803,097,318.40
  5. Step 5: Solve for x
    x = 282,803,097,318.40/579,340.87
  6. Step 6: Final answer
    x = 488,146.29

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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.