Home / 1,025,983.08-1,415,122.34-720,127.72

Finding the Fourth Proportional to 1,025,983.08, 1,415,122.34 and 720,127.72

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Solution

The fourth proportional to 1,025,983.08, 1,415,122.34 and 720,127.72 is: 993,260.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,983.08 : 1,415,122.34 = 720,127.72 : x
  2. Step 2: Convert to fraction form
    1,025,983.08/1,415,122.34 = 720,127.72/x
  3. Step 3: Cross multiply
    1,025,983.08x = 1,415,122.34 × 720,127.72
  4. Step 4: Simplify right side
    1,025,983.08x = 1,019,068,824,225.26
  5. Step 5: Solve for x
    x = 1,019,068,824,225.26/1,025,983.08
  6. Step 6: Final answer
    x = 993,260.85

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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.