Home / 549,407.22-758,145.88-307,634.38

Finding the Fourth Proportional to 549,407.22, 758,145.88 and 307,634.38

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Solution

The fourth proportional to 549,407.22, 758,145.88 and 307,634.38 is: 424,515.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,407.22 : 758,145.88 = 307,634.38 : x
  2. Step 2: Convert to fraction form
    549,407.22/758,145.88 = 307,634.38/x
  3. Step 3: Cross multiply
    549,407.22x = 758,145.88 × 307,634.38
  4. Step 4: Simplify right side
    549,407.22x = 233,231,737,743.35
  5. Step 5: Solve for x
    x = 233,231,737,743.35/549,407.22
  6. Step 6: Final answer
    x = 424,515.24

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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.