Home / 698,650.54-1,047,222.60-338,059.78

Finding the Fourth Proportional to 698,650.54, 1,047,222.60 and 338,059.78

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Solution

The fourth proportional to 698,650.54, 1,047,222.60 and 338,059.78 is: 506,725.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,650.54 : 1,047,222.60 = 338,059.78 : x
  2. Step 2: Convert to fraction form
    698,650.54/1,047,222.60 = 338,059.78/x
  3. Step 3: Cross multiply
    698,650.54x = 1,047,222.60 × 338,059.78
  4. Step 4: Simplify right side
    698,650.54x = 354,023,841,767.03
  5. Step 5: Solve for x
    x = 354,023,841,767.03/698,650.54
  6. Step 6: Final answer
    x = 506,725.21

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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.