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Finding the Fourth Proportional to 577,661.01, 797,110.86 and 319,496.95

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Solution

The fourth proportional to 577,661.01, 797,110.86 and 319,496.95 is: 440,871.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,661.01 : 797,110.86 = 319,496.95 : x
  2. Step 2: Convert to fraction form
    577,661.01/797,110.86 = 319,496.95/x
  3. Step 3: Cross multiply
    577,661.01x = 797,110.86 × 319,496.95
  4. Step 4: Simplify right side
    577,661.01x = 254,674,486,589.10
  5. Step 5: Solve for x
    x = 254,674,486,589.10/577,661.01
  6. Step 6: Final answer
    x = 440,871.86

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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.