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Finding the Fourth Proportional to 549,655.83, 758,546.82 and 307,940.40

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Solution

The fourth proportional to 549,655.83, 758,546.82 and 307,940.40 is: 424,969.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,655.83 : 758,546.82 = 307,940.40 : x
  2. Step 2: Convert to fraction form
    549,655.83/758,546.82 = 307,940.40/x
  3. Step 3: Cross multiply
    549,655.83x = 758,546.82 × 307,940.40
  4. Step 4: Simplify right side
    549,655.83x = 233,587,211,169.53
  5. Step 5: Solve for x
    x = 233,587,211,169.53/549,655.83
  6. Step 6: Final answer
    x = 424,969.95

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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.