Home / 1,156,386.92-1,595,736.87-640,105.88

Finding the Fourth Proportional to 1,156,386.92, 1,595,736.87 and 640,105.88

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Solution

The fourth proportional to 1,156,386.92, 1,595,736.87 and 640,105.88 is: 883,303.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156,386.92 : 1,595,736.87 = 640,105.88 : x
  2. Step 2: Convert to fraction form
    1,156,386.92/1,595,736.87 = 640,105.88/x
  3. Step 3: Cross multiply
    1,156,386.92x = 1,595,736.87 × 640,105.88
  4. Step 4: Simplify right side
    1,156,386.92x = 1,021,440,553,419.80
  5. Step 5: Solve for x
    x = 1,021,440,553,419.80/1,156,386.92
  6. Step 6: Final answer
    x = 883,303.45

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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.