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Finding the Fourth Proportional to 611,459.51, 843,891.96 and 369,743.79

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Solution

The fourth proportional to 611,459.51, 843,891.96 and 369,743.79 is: 510,293.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,459.51 : 843,891.96 = 369,743.79 : x
  2. Step 2: Convert to fraction form
    611,459.51/843,891.96 = 369,743.79/x
  3. Step 3: Cross multiply
    611,459.51x = 843,891.96 × 369,743.79
  4. Step 4: Simplify right side
    611,459.51x = 312,023,811,640.93
  5. Step 5: Solve for x
    x = 312,023,811,640.93/611,459.51
  6. Step 6: Final answer
    x = 510,293.50

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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.