Home / 642,293.18-886,323.03-351,904.35

Finding the Fourth Proportional to 642,293.18, 886,323.03 and 351,904.35

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Solution

The fourth proportional to 642,293.18, 886,323.03 and 351,904.35 is: 485,605.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,293.18 : 886,323.03 = 351,904.35 : x
  2. Step 2: Convert to fraction form
    642,293.18/886,323.03 = 351,904.35/x
  3. Step 3: Cross multiply
    642,293.18x = 886,323.03 × 351,904.35
  4. Step 4: Simplify right side
    642,293.18x = 311,900,928,442.54
  5. Step 5: Solve for x
    x = 311,900,928,442.54/642,293.18
  6. Step 6: Final answer
    x = 485,605.23

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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.