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Finding the Fourth Proportional to 549,738.16, 824,803.80 and 339,130.96

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Solution

The fourth proportional to 549,738.16, 824,803.80 and 339,130.96 is: 508,817.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,738.16 : 824,803.80 = 339,130.96 : x
  2. Step 2: Convert to fraction form
    549,738.16/824,803.80 = 339,130.96/x
  3. Step 3: Cross multiply
    549,738.16x = 824,803.80 × 339,130.96
  4. Step 4: Simplify right side
    549,738.16x = 279,716,504,505.65
  5. Step 5: Solve for x
    x = 279,716,504,505.65/549,738.16
  6. Step 6: Final answer
    x = 508,817.70

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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.