Home / 722,503.20-1,084,791.60-407,575.20

Finding the Fourth Proportional to 722,503.20, 1,084,791.60 and 407,575.20

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Solution

The fourth proportional to 722,503.20, 1,084,791.60 and 407,575.20 is: 611,947.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,503.20 : 1,084,791.60 = 407,575.20 : x
  2. Step 2: Convert to fraction form
    722,503.20/1,084,791.60 = 407,575.20/x
  3. Step 3: Cross multiply
    722,503.20x = 1,084,791.60 × 407,575.20
  4. Step 4: Simplify right side
    722,503.20x = 442,134,153,328.32
  5. Step 5: Solve for x
    x = 442,134,153,328.32/722,503.20
  6. Step 6: Final answer
    x = 611,947.67

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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.