Home / 642,465.38-886,603.27-352,030.79

Finding the Fourth Proportional to 642,465.38, 886,603.27 and 352,030.79

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Solution

The fourth proportional to 642,465.38, 886,603.27 and 352,030.79 is: 485,803.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,465.38 : 886,603.27 = 352,030.79 : x
  2. Step 2: Convert to fraction form
    642,465.38/886,603.27 = 352,030.79/x
  3. Step 3: Cross multiply
    642,465.38x = 886,603.27 × 352,030.79
  4. Step 4: Simplify right side
    642,465.38x = 312,111,647,794.53
  5. Step 5: Solve for x
    x = 312,111,647,794.53/642,465.38
  6. Step 6: Final answer
    x = 485,803.06

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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.