Home / 698,630.40-1,047,945.60-299,203.20

Finding the Fourth Proportional to 698,630.40, 1,047,945.60 and 299,203.20

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Solution

The fourth proportional to 698,630.40, 1,047,945.60 and 299,203.20 is: 448,804.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,630.40 : 1,047,945.60 = 299,203.20 : x
  2. Step 2: Convert to fraction form
    698,630.40/1,047,945.60 = 299,203.20/x
  3. Step 3: Cross multiply
    698,630.40x = 1,047,945.60 × 299,203.20
  4. Step 4: Simplify right side
    698,630.40x = 313,548,676,945.92
  5. Step 5: Solve for x
    x = 313,548,676,945.92/698,630.40
  6. Step 6: Final answer
    x = 448,804.80

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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.