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Finding the Fourth Proportional to 549,276.30, 769,511.70 and 549,276.30

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Solution

The fourth proportional to 549,276.30, 769,511.70 and 549,276.30 is: 769,511.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,276.30 : 769,511.70 = 549,276.30 : x
  2. Step 2: Convert to fraction form
    549,276.30/769,511.70 = 549,276.30/x
  3. Step 3: Cross multiply
    549,276.30x = 769,511.70 × 549,276.30
  4. Step 4: Simplify right side
    549,276.30x = 422,674,539,382.71
  5. Step 5: Solve for x
    x = 422,674,539,382.71/549,276.30
  6. Step 6: Final answer
    x = 769,511.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.