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Finding the Fourth Proportional to 577,649.70, 797,095.23 and 319,485.62

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Solution

The fourth proportional to 577,649.70, 797,095.23 and 319,485.62 is: 440,856.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,649.70 : 797,095.23 = 319,485.62 : x
  2. Step 2: Convert to fraction form
    577,649.70/797,095.23 = 319,485.62/x
  3. Step 3: Cross multiply
    577,649.70x = 797,095.23 × 319,485.62
  4. Step 4: Simplify right side
    577,649.70x = 254,660,465,748.33
  5. Step 5: Solve for x
    x = 254,660,465,748.33/577,649.70
  6. Step 6: Final answer
    x = 440,856.22

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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.