Home / 1,011,630.78-1,516,138.02-756,912.78

Finding the Fourth Proportional to 1,011,630.78, 1,516,138.02 and 756,912.78

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Solution

The fourth proportional to 1,011,630.78, 1,516,138.02 and 756,912.78 is: 1,134,390.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,630.78 : 1,516,138.02 = 756,912.78 : x
  2. Step 2: Convert to fraction form
    1,011,630.78/1,516,138.02 = 756,912.78/x
  3. Step 3: Cross multiply
    1,011,630.78x = 1,516,138.02 × 756,912.78
  4. Step 4: Simplify right side
    1,011,630.78x = 1,147,584,243,581.90
  5. Step 5: Solve for x
    x = 1,147,584,243,581.90/1,011,630.78
  6. Step 6: Final answer
    x = 1,134,390.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.