Home / 710,480.40-1,065,720.60-445,059.60

Finding the Fourth Proportional to 710,480.40, 1,065,720.60 and 445,059.60

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Solution

The fourth proportional to 710,480.40, 1,065,720.60 and 445,059.60 is: 667,589.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,480.40 : 1,065,720.60 = 445,059.60 : x
  2. Step 2: Convert to fraction form
    710,480.40/1,065,720.60 = 445,059.60/x
  3. Step 3: Cross multiply
    710,480.40x = 1,065,720.60 × 445,059.60
  4. Step 4: Simplify right side
    710,480.40x = 474,309,183,947.76
  5. Step 5: Solve for x
    x = 474,309,183,947.76/710,480.40
  6. Step 6: Final answer
    x = 667,589.40

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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.