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Finding the Fourth Proportional to 549,073.10, 823,609.65 and 528,077.90

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Solution

The fourth proportional to 549,073.10, 823,609.65 and 528,077.90 is: 792,116.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,073.10 : 823,609.65 = 528,077.90 : x
  2. Step 2: Convert to fraction form
    549,073.10/823,609.65 = 528,077.90/x
  3. Step 3: Cross multiply
    549,073.10x = 823,609.65 × 528,077.90
  4. Step 4: Simplify right side
    549,073.10x = 434,930,054,391.74
  5. Step 5: Solve for x
    x = 434,930,054,391.74/549,073.10
  6. Step 6: Final answer
    x = 792,116.85

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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.