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Finding the Fourth Proportional to 549,409.73, 758,149.34 and 307,636.88

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Solution

The fourth proportional to 549,409.73, 758,149.34 and 307,636.88 is: 424,518.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,409.73 : 758,149.34 = 307,636.88 : x
  2. Step 2: Convert to fraction form
    549,409.73/758,149.34 = 307,636.88/x
  3. Step 3: Cross multiply
    549,409.73x = 758,149.34 × 307,636.88
  4. Step 4: Simplify right side
    549,409.73x = 233,234,692,202.73
  5. Step 5: Solve for x
    x = 233,234,692,202.73/549,409.73
  6. Step 6: Final answer
    x = 424,518.68

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1.5x scale

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.