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Finding the Fourth Proportional to 535,305.51, 738,862.16 and 320,613.39

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Solution

The fourth proportional to 535,305.51, 738,862.16 and 320,613.39 is: 442,530.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,305.51 : 738,862.16 = 320,613.39 : x
  2. Step 2: Convert to fraction form
    535,305.51/738,862.16 = 320,613.39/x
  3. Step 3: Cross multiply
    535,305.51x = 738,862.16 × 320,613.39
  4. Step 4: Simplify right side
    535,305.51x = 236,889,100,257.26
  5. Step 5: Solve for x
    x = 236,889,100,257.26/535,305.51
  6. Step 6: Final answer
    x = 442,530.66

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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.