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Finding the Fourth Proportional to 546,627.76, 820,194.72 and 209,555.68

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Solution

The fourth proportional to 546,627.76, 820,194.72 and 209,555.68 is: 314,430.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,627.76 : 820,194.72 = 209,555.68 : x
  2. Step 2: Convert to fraction form
    546,627.76/820,194.72 = 209,555.68/x
  3. Step 3: Cross multiply
    546,627.76x = 820,194.72 × 209,555.68
  4. Step 4: Simplify right side
    546,627.76x = 171,876,462,282.01
  5. Step 5: Solve for x
    x = 171,876,462,282.01/546,627.76
  6. Step 6: Final answer
    x = 314,430.54

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1.5x scale

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.