Home / 430,659.28-645,989.16-193,725.16

Finding the Fourth Proportional to 430,659.28, 645,989.16 and 193,725.16

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Solution

The fourth proportional to 430,659.28, 645,989.16 and 193,725.16 is: 290,587.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,659.28 : 645,989.16 = 193,725.16 : x
  2. Step 2: Convert to fraction form
    430,659.28/645,989.16 = 193,725.16/x
  3. Step 3: Cross multiply
    430,659.28x = 645,989.16 × 193,725.16
  4. Step 4: Simplify right side
    430,659.28x = 125,144,353,379.27
  5. Step 5: Solve for x
    x = 125,144,353,379.27/430,659.28
  6. Step 6: Final answer
    x = 290,587.85

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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.