Home / 1,512,378.34-2,087,229.18-1,129,740.82

Finding the Fourth Proportional to 1,512,378.34, 2,087,229.18 and 1,129,740.82

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Solution

The fourth proportional to 1,512,378.34, 2,087,229.18 and 1,129,740.82 is: 1,559,152.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,378.34 : 2,087,229.18 = 1,129,740.82 : x
  2. Step 2: Convert to fraction form
    1,512,378.34/2,087,229.18 = 1,129,740.82/x
  3. Step 3: Cross multiply
    1,512,378.34x = 2,087,229.18 × 1,129,740.82
  4. Step 4: Simplify right side
    1,512,378.34x = 2,358,028,004,359.58
  5. Step 5: Solve for x
    x = 2,358,028,004,359.58/1,512,378.34
  6. Step 6: Final answer
    x = 1,559,152.19

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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.