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Finding the Fourth Proportional to 549,656, 758,525.36 and 311,192

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Solution

The fourth proportional to 549,656, 758,525.36 and 311,192 is: 429,445.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,656 : 758,525.36 = 311,192 : x
  2. Step 2: Convert to fraction form
    549,656/758,525.36 = 311,192/x
  3. Step 3: Cross multiply
    549,656x = 758,525.36 × 311,192
  4. Step 4: Simplify right side
    549,656x = 236,047,023,829.12
  5. Step 5: Solve for x
    x = 236,047,023,829.12/549,656
  6. Step 6: Final answer
    x = 429,445.01

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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.