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Finding the Fourth Proportional to 577,588.80, 865,231.20 and 508,315.20

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Solution

The fourth proportional to 577,588.80, 865,231.20 and 508,315.20 is: 761,458.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,588.80 : 865,231.20 = 508,315.20 : x
  2. Step 2: Convert to fraction form
    577,588.80/865,231.20 = 508,315.20/x
  3. Step 3: Cross multiply
    577,588.80x = 865,231.20 × 508,315.20
  4. Step 4: Simplify right side
    577,588.80x = 439,810,170,474.24
  5. Step 5: Solve for x
    x = 439,810,170,474.24/577,588.80
  6. Step 6: Final answer
    x = 761,458.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.