Home / 828,168.36-1,142,913.42-505,826.28

Finding the Fourth Proportional to 828,168.36, 1,142,913.42 and 505,826.28

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Solution

The fourth proportional to 828,168.36, 1,142,913.42 and 505,826.28 is: 698,065.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,168.36 : 1,142,913.42 = 505,826.28 : x
  2. Step 2: Convert to fraction form
    828,168.36/1,142,913.42 = 505,826.28/x
  3. Step 3: Cross multiply
    828,168.36x = 1,142,913.42 × 505,826.28
  4. Step 4: Simplify right side
    828,168.36x = 578,115,643,600.68
  5. Step 5: Solve for x
    x = 578,115,643,600.68/828,168.36
  6. Step 6: Final answer
    x = 698,065.36

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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.