Home / 1,277,957.78-1,915,178.34-547,606.70

Finding the Fourth Proportional to 1,277,957.78, 1,915,178.34 and 547,606.70

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Solution

The fourth proportional to 1,277,957.78, 1,915,178.34 and 547,606.70 is: 820,656.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,957.78 : 1,915,178.34 = 547,606.70 : x
  2. Step 2: Convert to fraction form
    1,277,957.78/1,915,178.34 = 547,606.70/x
  3. Step 3: Cross multiply
    1,277,957.78x = 1,915,178.34 × 547,606.70
  4. Step 4: Simplify right side
    1,277,957.78x = 1,048,764,495,466.82
  5. Step 5: Solve for x
    x = 1,048,764,495,466.82/1,277,957.78
  6. Step 6: Final answer
    x = 820,656.61

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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.