Home / 607,725.30-911,784.78-292,141.20

Finding the Fourth Proportional to 607,725.30, 911,784.78 and 292,141.20

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Solution

The fourth proportional to 607,725.30, 911,784.78 and 292,141.20 is: 438,306.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,725.30 : 911,784.78 = 292,141.20 : x
  2. Step 2: Convert to fraction form
    607,725.30/911,784.78 = 292,141.20/x
  3. Step 3: Cross multiply
    607,725.30x = 911,784.78 × 292,141.20
  4. Step 4: Simplify right side
    607,725.30x = 266,369,899,770.94
  5. Step 5: Solve for x
    x = 266,369,899,770.94/607,725.30
  6. Step 6: Final answer
    x = 438,306.42

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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.