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Finding the Fourth Proportional to 752,679.15, 1,038,659.10 and 446,768.88

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Solution

The fourth proportional to 752,679.15, 1,038,659.10 and 446,768.88 is: 616,518.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,679.15 : 1,038,659.10 = 446,768.88 : x
  2. Step 2: Convert to fraction form
    752,679.15/1,038,659.10 = 446,768.88/x
  3. Step 3: Cross multiply
    752,679.15x = 1,038,659.10 × 446,768.88
  4. Step 4: Simplify right side
    752,679.15x = 464,040,562,808.81
  5. Step 5: Solve for x
    x = 464,040,562,808.81/752,679.15
  6. Step 6: Final answer
    x = 616,518.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.