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Finding the Fourth Proportional to 503,850.39, 695,325.92 and 310,186.01

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Solution

The fourth proportional to 503,850.39, 695,325.92 and 310,186.01 is: 428,064.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,850.39 : 695,325.92 = 310,186.01 : x
  2. Step 2: Convert to fraction form
    503,850.39/695,325.92 = 310,186.01/x
  3. Step 3: Cross multiply
    503,850.39x = 695,325.92 × 310,186.01
  4. Step 4: Simplify right side
    503,850.39x = 215,680,367,746.82
  5. Step 5: Solve for x
    x = 215,680,367,746.82/503,850.39
  6. Step 6: Final answer
    x = 428,064.31

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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.