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Finding the Fourth Proportional to 519,499.51, 716,902.30 and 290,060.33

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Solution

The fourth proportional to 519,499.51, 716,902.30 and 290,060.33 is: 400,279.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,499.51 : 716,902.30 = 290,060.33 : x
  2. Step 2: Convert to fraction form
    519,499.51/716,902.30 = 290,060.33/x
  3. Step 3: Cross multiply
    519,499.51x = 716,902.30 × 290,060.33
  4. Step 4: Simplify right side
    519,499.51x = 207,944,912,862.23
  5. Step 5: Solve for x
    x = 207,944,912,862.23/519,499.51
  6. Step 6: Final answer
    x = 400,279.33

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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.