Home / 1,116,913.20-1,674,735.12-762,356.40

Finding the Fourth Proportional to 1,116,913.20, 1,674,735.12 and 762,356.40

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Solution

The fourth proportional to 1,116,913.20, 1,674,735.12 and 762,356.40 is: 1,143,101.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,913.20 : 1,674,735.12 = 762,356.40 : x
  2. Step 2: Convert to fraction form
    1,116,913.20/1,674,735.12 = 762,356.40/x
  3. Step 3: Cross multiply
    1,116,913.20x = 1,674,735.12 × 762,356.40
  4. Step 4: Simplify right side
    1,116,913.20x = 1,276,745,037,036.77
  5. Step 5: Solve for x
    x = 1,276,745,037,036.77/1,116,913.20
  6. Step 6: Final answer
    x = 1,143,101.40

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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.