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Finding the Fourth Proportional to 549,813.70, 770,845.10 and 549,813.70

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Solution

The fourth proportional to 549,813.70, 770,845.10 and 549,813.70 is: 770,845.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,813.70 : 770,845.10 = 549,813.70 : x
  2. Step 2: Convert to fraction form
    549,813.70/770,845.10 = 549,813.70/x
  3. Step 3: Cross multiply
    549,813.70x = 770,845.10 × 549,813.70
  4. Step 4: Simplify right side
    549,813.70x = 423,821,196,557.87
  5. Step 5: Solve for x
    x = 423,821,196,557.87/549,813.70
  6. Step 6: Final answer
    x = 770,845.10

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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.