Home / 1,539,139.20-2,122,636.80-966,232.64

Finding the Fourth Proportional to 1,539,139.20, 2,122,636.80 and 966,232.64

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Solution

The fourth proportional to 1,539,139.20, 2,122,636.80 and 966,232.64 is: 1,332,537.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539,139.20 : 2,122,636.80 = 966,232.64 : x
  2. Step 2: Convert to fraction form
    1,539,139.20/2,122,636.80 = 966,232.64/x
  3. Step 3: Cross multiply
    1,539,139.20x = 2,122,636.80 × 966,232.64
  4. Step 4: Simplify right side
    1,539,139.20x = 2,050,960,959,025.15
  5. Step 5: Solve for x
    x = 2,050,960,959,025.15/1,539,139.20
  6. Step 6: Final answer
    x = 1,332,537.67

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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.