Home / 1,128,022.34-1,556,869.86-669,389.81

Finding the Fourth Proportional to 1,128,022.34, 1,556,869.86 and 669,389.81

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Solution

The fourth proportional to 1,128,022.34, 1,556,869.86 and 669,389.81 is: 923,876.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,022.34 : 1,556,869.86 = 669,389.81 : x
  2. Step 2: Convert to fraction form
    1,128,022.34/1,556,869.86 = 669,389.81/x
  3. Step 3: Cross multiply
    1,128,022.34x = 1,556,869.86 × 669,389.81
  4. Step 4: Simplify right side
    1,128,022.34x = 1,042,152,811,995.78
  5. Step 5: Solve for x
    x = 1,042,152,811,995.78/1,128,022.34
  6. Step 6: Final answer
    x = 923,876.04

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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.