Home / 1,054,299.20-1,455,288-640,834.72

Finding the Fourth Proportional to 1,054,299.20, 1,455,288 and 640,834.72

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Solution

The fourth proportional to 1,054,299.20, 1,455,288 and 640,834.72 is: 884,567.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054,299.20 : 1,455,288 = 640,834.72 : x
  2. Step 2: Convert to fraction form
    1,054,299.20/1,455,288 = 640,834.72/x
  3. Step 3: Cross multiply
    1,054,299.20x = 1,455,288 × 640,834.72
  4. Step 4: Simplify right side
    1,054,299.20x = 932,599,077,999.36
  5. Step 5: Solve for x
    x = 932,599,077,999.36/1,054,299.20
  6. Step 6: Final answer
    x = 884,567.76

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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.