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Finding the Fourth Proportional to 549,008.78, 757,596.96 and 307,250.54

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Solution

The fourth proportional to 549,008.78, 757,596.96 and 307,250.54 is: 423,986.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,008.78 : 757,596.96 = 307,250.54 : x
  2. Step 2: Convert to fraction form
    549,008.78/757,596.96 = 307,250.54/x
  3. Step 3: Cross multiply
    549,008.78x = 757,596.96 × 307,250.54
  4. Step 4: Simplify right side
    549,008.78x = 232,772,075,062.36
  5. Step 5: Solve for x
    x = 232,772,075,062.36/549,008.78
  6. Step 6: Final answer
    x = 423,986.07

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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.