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Finding the Fourth Proportional to 549,876.85, 758,860.37 and 308,237.05

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Solution

The fourth proportional to 549,876.85, 758,860.37 and 308,237.05 is: 425,384.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,876.85 : 758,860.37 = 308,237.05 : x
  2. Step 2: Convert to fraction form
    549,876.85/758,860.37 = 308,237.05/x
  3. Step 3: Cross multiply
    549,876.85x = 758,860.37 × 308,237.05
  4. Step 4: Simplify right side
    549,876.85x = 233,908,878,972.32
  5. Step 5: Solve for x
    x = 233,908,878,972.32/549,876.85
  6. Step 6: Final answer
    x = 425,384.12

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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.