Home / 698,515.20-1,046,390.40-417,196.80

Finding the Fourth Proportional to 698,515.20, 1,046,390.40 and 417,196.80

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Solution

The fourth proportional to 698,515.20, 1,046,390.40 and 417,196.80 is: 624,969.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,515.20 : 1,046,390.40 = 417,196.80 : x
  2. Step 2: Convert to fraction form
    698,515.20/1,046,390.40 = 417,196.80/x
  3. Step 3: Cross multiply
    698,515.20x = 1,046,390.40 × 417,196.80
  4. Step 4: Simplify right side
    698,515.20x = 436,550,726,430.72
  5. Step 5: Solve for x
    x = 436,550,726,430.72/698,515.20
  6. Step 6: Final answer
    x = 624,969.54

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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.