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Finding the Fourth Proportional to 487,859.58, 730,842.48 and 359,542.80

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Solution

The fourth proportional to 487,859.58, 730,842.48 and 359,542.80 is: 538,616.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,859.58 : 730,842.48 = 359,542.80 : x
  2. Step 2: Convert to fraction form
    487,859.58/730,842.48 = 359,542.80/x
  3. Step 3: Cross multiply
    487,859.58x = 730,842.48 × 359,542.80
  4. Step 4: Simplify right side
    487,859.58x = 262,769,151,618.14
  5. Step 5: Solve for x
    x = 262,769,151,618.14/487,859.58
  6. Step 6: Final answer
    x = 538,616.36

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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.