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Finding the Fourth Proportional to 579,187.68, 798,805.05 and 407,673.42

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Solution

The fourth proportional to 579,187.68, 798,805.05 and 407,673.42 is: 562,255.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,187.68 : 798,805.05 = 407,673.42 : x
  2. Step 2: Convert to fraction form
    579,187.68/798,805.05 = 407,673.42/x
  3. Step 3: Cross multiply
    579,187.68x = 798,805.05 × 407,673.42
  4. Step 4: Simplify right side
    579,187.68x = 325,651,586,646.77
  5. Step 5: Solve for x
    x = 325,651,586,646.77/579,187.68
  6. Step 6: Final answer
    x = 562,255.72

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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.