Home / 1,221,545.37-1,685,032.23-761,861.87

Finding the Fourth Proportional to 1,221,545.37, 1,685,032.23 and 761,861.87

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Solution

The fourth proportional to 1,221,545.37, 1,685,032.23 and 761,861.87 is: 1,050,932.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,545.37 : 1,685,032.23 = 761,861.87 : x
  2. Step 2: Convert to fraction form
    1,221,545.37/1,685,032.23 = 761,861.87/x
  3. Step 3: Cross multiply
    1,221,545.37x = 1,685,032.23 × 761,861.87
  4. Step 4: Simplify right side
    1,221,545.37x = 1,283,761,805,758.07
  5. Step 5: Solve for x
    x = 1,283,761,805,758.07/1,221,545.37
  6. Step 6: Final answer
    x = 1,050,932.56

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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.