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Finding the Fourth Proportional to 549,347.01, 825,283.37 and 387,613.30

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Solution

The fourth proportional to 549,347.01, 825,283.37 and 387,613.30 is: 582,311.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,347.01 : 825,283.37 = 387,613.30 : x
  2. Step 2: Convert to fraction form
    549,347.01/825,283.37 = 387,613.30/x
  3. Step 3: Cross multiply
    549,347.01x = 825,283.37 × 387,613.30
  4. Step 4: Simplify right side
    549,347.01x = 319,890,809,386.65
  5. Step 5: Solve for x
    x = 319,890,809,386.65/549,347.01
  6. Step 6: Final answer
    x = 582,311.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.