Home / 1,018,205.79-1,527,640.38-485,657.52

Finding the Fourth Proportional to 1,018,205.79, 1,527,640.38 and 485,657.52

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Solution

The fourth proportional to 1,018,205.79, 1,527,640.38 and 485,657.52 is: 728,644.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,205.79 : 1,527,640.38 = 485,657.52 : x
  2. Step 2: Convert to fraction form
    1,018,205.79/1,527,640.38 = 485,657.52/x
  3. Step 3: Cross multiply
    1,018,205.79x = 1,527,640.38 × 485,657.52
  4. Step 4: Simplify right side
    1,018,205.79x = 741,910,038,402.66
  5. Step 5: Solve for x
    x = 741,910,038,402.66/1,018,205.79
  6. Step 6: Final answer
    x = 728,644.49

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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.