Home / 1,399,648.83-1,931,510.64-787,801.24

Finding the Fourth Proportional to 1,399,648.83, 1,931,510.64 and 787,801.24

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Solution

The fourth proportional to 1,399,648.83, 1,931,510.64 and 787,801.24 is: 1,087,163.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,648.83 : 1,931,510.64 = 787,801.24 : x
  2. Step 2: Convert to fraction form
    1,399,648.83/1,931,510.64 = 787,801.24/x
  3. Step 3: Cross multiply
    1,399,648.83x = 1,931,510.64 × 787,801.24
  4. Step 4: Simplify right side
    1,399,648.83x = 1,521,646,477,265.19
  5. Step 5: Solve for x
    x = 1,521,646,477,265.19/1,399,648.83
  6. Step 6: Final answer
    x = 1,087,163.04

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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.