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Finding the Fourth Proportional to 575,277.66, 793,259.73 and 391,635

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Solution

The fourth proportional to 575,277.66, 793,259.73 and 391,635 is: 540,031.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,277.66 : 793,259.73 = 391,635 : x
  2. Step 2: Convert to fraction form
    575,277.66/793,259.73 = 391,635/x
  3. Step 3: Cross multiply
    575,277.66x = 793,259.73 × 391,635
  4. Step 4: Simplify right side
    575,277.66x = 310,668,274,358.55
  5. Step 5: Solve for x
    x = 310,668,274,358.55/575,277.66
  6. Step 6: Final answer
    x = 540,031.88

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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.