Home / 392,942.34-589,411.08-112,460.40

Finding the Fourth Proportional to 392,942.34, 589,411.08 and 112,460.40

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Solution

The fourth proportional to 392,942.34, 589,411.08 and 112,460.40 is: 168,689.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,942.34 : 589,411.08 = 112,460.40 : x
  2. Step 2: Convert to fraction form
    392,942.34/589,411.08 = 112,460.40/x
  3. Step 3: Cross multiply
    392,942.34x = 589,411.08 × 112,460.40
  4. Step 4: Simplify right side
    392,942.34x = 66,285,405,821.23
  5. Step 5: Solve for x
    x = 66,285,405,821.23/392,942.34
  6. Step 6: Final answer
    x = 168,689.90

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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.