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Finding the Fourth Proportional to 549,272.80, 824,427.60 and 339,320.80

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Solution

The fourth proportional to 549,272.80, 824,427.60 and 339,320.80 is: 509,301.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,272.80 : 824,427.60 = 339,320.80 : x
  2. Step 2: Convert to fraction form
    549,272.80/824,427.60 = 339,320.80/x
  3. Step 3: Cross multiply
    549,272.80x = 824,427.60 × 339,320.80
  4. Step 4: Simplify right side
    549,272.80x = 279,745,432,774.08
  5. Step 5: Solve for x
    x = 279,745,432,774.08/549,272.80
  6. Step 6: Final answer
    x = 509,301.45

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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.