Home / 1,129,250-1,558,163.76-639,217.04

Finding the Fourth Proportional to 1,129,250, 1,558,163.76 and 639,217.04

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Solution

The fourth proportional to 1,129,250, 1,558,163.76 and 639,217.04 is: 882,005.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,250 : 1,558,163.76 = 639,217.04 : x
  2. Step 2: Convert to fraction form
    1,129,250/1,558,163.76 = 639,217.04/x
  3. Step 3: Cross multiply
    1,129,250x = 1,558,163.76 × 639,217.04
  4. Step 4: Simplify right side
    1,129,250x = 996,004,826,502.47
  5. Step 5: Solve for x
    x = 996,004,826,502.47/1,129,250
  6. Step 6: Final answer
    x = 882,005.60

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1.5x scale

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.