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Finding the Fourth Proportional to 549,935.34, 758,909.73 and 308,217.84

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Solution

The fourth proportional to 549,935.34, 758,909.73 and 308,217.84 is: 425,340.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,935.34 : 758,909.73 = 308,217.84 : x
  2. Step 2: Convert to fraction form
    549,935.34/758,909.73 = 308,217.84/x
  3. Step 3: Cross multiply
    549,935.34x = 758,909.73 × 308,217.84
  4. Step 4: Simplify right side
    549,935.34x = 233,909,517,735.58
  5. Step 5: Solve for x
    x = 233,909,517,735.58/549,935.34
  6. Step 6: Final answer
    x = 425,340.04

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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.