Home / 698,580.63-1,047,124.90-398,414.88

Finding the Fourth Proportional to 698,580.63, 1,047,124.90 and 398,414.88

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Solution

The fourth proportional to 698,580.63, 1,047,124.90 and 398,414.88 is: 597,196.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,580.63 : 1,047,124.90 = 398,414.88 : x
  2. Step 2: Convert to fraction form
    698,580.63/1,047,124.90 = 398,414.88/x
  3. Step 3: Cross multiply
    698,580.63x = 1,047,124.90 × 398,414.88
  4. Step 4: Simplify right side
    698,580.63x = 417,190,137,764.66
  5. Step 5: Solve for x
    x = 417,190,137,764.66/698,580.63
  6. Step 6: Final answer
    x = 597,196.83

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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.