Home / 638,111.52-880,582.60-347,725.65

Finding the Fourth Proportional to 638,111.52, 880,582.60 and 347,725.65

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Solution

The fourth proportional to 638,111.52, 880,582.60 and 347,725.65 is: 479,855.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,111.52 : 880,582.60 = 347,725.65 : x
  2. Step 2: Convert to fraction form
    638,111.52/880,582.60 = 347,725.65/x
  3. Step 3: Cross multiply
    638,111.52x = 880,582.60 × 347,725.65
  4. Step 4: Simplify right side
    638,111.52x = 306,201,154,997.93
  5. Step 5: Solve for x
    x = 306,201,154,997.93/638,111.52
  6. Step 6: Final answer
    x = 479,855.24

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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.