Home / 1,142,117.10-1,576,121.60-632,819.47

Finding the Fourth Proportional to 1,142,117.10, 1,576,121.60 and 632,819.47

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Solution

The fourth proportional to 1,142,117.10, 1,576,121.60 and 632,819.47 is: 873,290.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,117.10 : 1,576,121.60 = 632,819.47 : x
  2. Step 2: Convert to fraction form
    1,142,117.10/1,576,121.60 = 632,819.47/x
  3. Step 3: Cross multiply
    1,142,117.10x = 1,576,121.60 × 632,819.47
  4. Step 4: Simplify right side
    1,142,117.10x = 997,400,435,567.55
  5. Step 5: Solve for x
    x = 997,400,435,567.55/1,142,117.10
  6. Step 6: Final answer
    x = 873,290.87

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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.