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Finding the Fourth Proportional to 503,842.52, 695,251.26 and 310,219.52

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Solution

The fourth proportional to 503,842.52, 695,251.26 and 310,219.52 is: 428,071.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,842.52 : 695,251.26 = 310,219.52 : x
  2. Step 2: Convert to fraction form
    503,842.52/695,251.26 = 310,219.52/x
  3. Step 3: Cross multiply
    503,842.52x = 695,251.26 × 310,219.52
  4. Step 4: Simplify right side
    503,842.52x = 215,680,512,156.60
  5. Step 5: Solve for x
    x = 215,680,512,156.60/503,842.52
  6. Step 6: Final answer
    x = 428,071.28

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1.5x scale

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.