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Finding the Fourth Proportional to 549,039.06, 823,700.57 and 321,526.81

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Solution

The fourth proportional to 549,039.06, 823,700.57 and 321,526.81 is: 482,373.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,039.06 : 823,700.57 = 321,526.81 : x
  2. Step 2: Convert to fraction form
    549,039.06/823,700.57 = 321,526.81/x
  3. Step 3: Cross multiply
    549,039.06x = 823,700.57 × 321,526.81
  4. Step 4: Simplify right side
    549,039.06x = 264,841,816,667.28
  5. Step 5: Solve for x
    x = 264,841,816,667.28/549,039.06
  6. Step 6: Final answer
    x = 482,373.36

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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.