Home / 1,671,847.72-2,307,856.12-1,128,719.18

Finding the Fourth Proportional to 1,671,847.72, 2,307,856.12 and 1,128,719.18

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Solution

The fourth proportional to 1,671,847.72, 2,307,856.12 and 1,128,719.18 is: 1,558,109.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671,847.72 : 2,307,856.12 = 1,128,719.18 : x
  2. Step 2: Convert to fraction form
    1,671,847.72/2,307,856.12 = 1,128,719.18/x
  3. Step 3: Cross multiply
    1,671,847.72x = 2,307,856.12 × 1,128,719.18
  4. Step 4: Simplify right side
    1,671,847.72x = 2,604,921,467,324.38
  5. Step 5: Solve for x
    x = 2,604,921,467,324.38/1,671,847.72
  6. Step 6: Final answer
    x = 1,558,109.29

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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.