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Finding the Fourth Proportional to 768,367.52, 1,060,485.96 and 458,289.98

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Solution

The fourth proportional to 768,367.52, 1,060,485.96 and 458,289.98 is: 632,522.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,367.52 : 1,060,485.96 = 458,289.98 : x
  2. Step 2: Convert to fraction form
    768,367.52/1,060,485.96 = 458,289.98/x
  3. Step 3: Cross multiply
    768,367.52x = 1,060,485.96 × 458,289.98
  4. Step 4: Simplify right side
    768,367.52x = 486,010,089,398.68
  5. Step 5: Solve for x
    x = 486,010,089,398.68/768,367.52
  6. Step 6: Final answer
    x = 632,522.95

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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.