Home / 1,156,005.63-1,595,251.74-639,728.46

Finding the Fourth Proportional to 1,156,005.63, 1,595,251.74 and 639,728.46

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Solution

The fourth proportional to 1,156,005.63, 1,595,251.74 and 639,728.46 is: 882,805.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156,005.63 : 1,595,251.74 = 639,728.46 : x
  2. Step 2: Convert to fraction form
    1,156,005.63/1,595,251.74 = 639,728.46/x
  3. Step 3: Cross multiply
    1,156,005.63x = 1,595,251.74 × 639,728.46
  4. Step 4: Simplify right side
    1,156,005.63x = 1,020,527,938,942.52
  5. Step 5: Solve for x
    x = 1,020,527,938,942.52/1,156,005.63
  6. Step 6: Final answer
    x = 882,805.34

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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.