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Finding the Fourth Proportional to 549,462.80, 758,236.20 and 307,741.52

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Solution

The fourth proportional to 549,462.80, 758,236.20 and 307,741.52 is: 424,670.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,462.80 : 758,236.20 = 307,741.52 : x
  2. Step 2: Convert to fraction form
    549,462.80/758,236.20 = 307,741.52/x
  3. Step 3: Cross multiply
    549,462.80x = 758,236.20 × 307,741.52
  4. Step 4: Simplify right side
    549,462.80x = 233,340,760,707.02
  5. Step 5: Solve for x
    x = 233,340,760,707.02/549,462.80
  6. Step 6: Final answer
    x = 424,670.72

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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.