Home / 1,025,989.13-1,538,153.55-427,399.94

Finding the Fourth Proportional to 1,025,989.13, 1,538,153.55 and 427,399.94

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Solution

The fourth proportional to 1,025,989.13, 1,538,153.55 and 427,399.94 is: 640,754.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,989.13 : 1,538,153.55 = 427,399.94 : x
  2. Step 2: Convert to fraction form
    1,025,989.13/1,538,153.55 = 427,399.94/x
  3. Step 3: Cross multiply
    1,025,989.13x = 1,538,153.55 × 427,399.94
  4. Step 4: Simplify right side
    1,025,989.13x = 657,406,738,826.17
  5. Step 5: Solve for x
    x = 657,406,738,826.17/1,025,989.13
  6. Step 6: Final answer
    x = 640,754.10

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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.