Home / 915,629.70-1,373,444.55-780,327.30

Finding the Fourth Proportional to 915,629.70, 1,373,444.55 and 780,327.30

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Solution

The fourth proportional to 915,629.70, 1,373,444.55 and 780,327.30 is: 1,170,490.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,629.70 : 1,373,444.55 = 780,327.30 : x
  2. Step 2: Convert to fraction form
    915,629.70/1,373,444.55 = 780,327.30/x
  3. Step 3: Cross multiply
    915,629.70x = 1,373,444.55 × 780,327.30
  4. Step 4: Simplify right side
    915,629.70x = 1,071,736,277,401.22
  5. Step 5: Solve for x
    x = 1,071,736,277,401.22/915,629.70
  6. Step 6: Final answer
    x = 1,170,490.95

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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.