Home / 1,185,302.47-1,635,717.33-641,438.20

Finding the Fourth Proportional to 1,185,302.47, 1,635,717.33 and 641,438.20

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Solution

The fourth proportional to 1,185,302.47, 1,635,717.33 and 641,438.20 is: 885,184.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,302.47 : 1,635,717.33 = 641,438.20 : x
  2. Step 2: Convert to fraction form
    1,185,302.47/1,635,717.33 = 641,438.20/x
  3. Step 3: Cross multiply
    1,185,302.47x = 1,635,717.33 × 641,438.20
  4. Step 4: Simplify right side
    1,185,302.47x = 1,049,211,579,864.01
  5. Step 5: Solve for x
    x = 1,049,211,579,864.01/1,185,302.47
  6. Step 6: Final answer
    x = 885,184.67

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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.