Home / 1,277,148.74-1,913,555.24-770,645.48

Finding the Fourth Proportional to 1,277,148.74, 1,913,555.24 and 770,645.48

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Solution

The fourth proportional to 1,277,148.74, 1,913,555.24 and 770,645.48 is: 1,154,660.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,148.74 : 1,913,555.24 = 770,645.48 : x
  2. Step 2: Convert to fraction form
    1,277,148.74/1,913,555.24 = 770,645.48/x
  3. Step 3: Cross multiply
    1,277,148.74x = 1,913,555.24 × 770,645.48
  4. Step 4: Simplify right side
    1,277,148.74x = 1,474,672,692,583.09
  5. Step 5: Solve for x
    x = 1,474,672,692,583.09/1,277,148.74
  6. Step 6: Final answer
    x = 1,154,660.10

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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.