Home / 1,102,156.48-1,520,584.64-720,403.52

Finding the Fourth Proportional to 1,102,156.48, 1,520,584.64 and 720,403.52

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Solution

The fourth proportional to 1,102,156.48, 1,520,584.64 and 720,403.52 is: 993,901.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,156.48 : 1,520,584.64 = 720,403.52 : x
  2. Step 2: Convert to fraction form
    1,102,156.48/1,520,584.64 = 720,403.52/x
  3. Step 3: Cross multiply
    1,102,156.48x = 1,520,584.64 × 720,403.52
  4. Step 4: Simplify right side
    1,102,156.48x = 1,095,434,527,113.93
  5. Step 5: Solve for x
    x = 1,095,434,527,113.93/1,102,156.48
  6. Step 6: Final answer
    x = 993,901.09

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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.