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Finding the Fourth Proportional to 549,797.18, 758,270.28 and 386,992.64

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Solution

The fourth proportional to 549,797.18, 758,270.28 and 386,992.64 is: 533,733.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,797.18 : 758,270.28 = 386,992.64 : x
  2. Step 2: Convert to fraction form
    549,797.18/758,270.28 = 386,992.64/x
  3. Step 3: Cross multiply
    549,797.18x = 758,270.28 × 386,992.64
  4. Step 4: Simplify right side
    549,797.18x = 293,445,017,490.74
  5. Step 5: Solve for x
    x = 293,445,017,490.74/549,797.18
  6. Step 6: Final answer
    x = 533,733.22

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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.