Home / 1,243,125.77-1,865,685.11-644,258.15

Finding the Fourth Proportional to 1,243,125.77, 1,865,685.11 and 644,258.15

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Solution

The fourth proportional to 1,243,125.77, 1,865,685.11 and 644,258.15 is: 966,903.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,125.77 : 1,865,685.11 = 644,258.15 : x
  2. Step 2: Convert to fraction form
    1,243,125.77/1,865,685.11 = 644,258.15/x
  3. Step 3: Cross multiply
    1,243,125.77x = 1,865,685.11 × 644,258.15
  4. Step 4: Simplify right side
    1,243,125.77x = 1,201,982,829,733.37
  5. Step 5: Solve for x
    x = 1,201,982,829,733.37/1,243,125.77
  6. Step 6: Final answer
    x = 966,903.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.