Home / 826,489.80-1,140,411.83-463,928.94

Finding the Fourth Proportional to 826,489.80, 1,140,411.83 and 463,928.94

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Solution

The fourth proportional to 826,489.80, 1,140,411.83 and 463,928.94 is: 640,141.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,489.80 : 1,140,411.83 = 463,928.94 : x
  2. Step 2: Convert to fraction form
    826,489.80/1,140,411.83 = 463,928.94/x
  3. Step 3: Cross multiply
    826,489.80x = 1,140,411.83 × 463,928.94
  4. Step 4: Simplify right side
    826,489.80x = 529,070,049,135.72
  5. Step 5: Solve for x
    x = 529,070,049,135.72/826,489.80
  6. Step 6: Final answer
    x = 640,141.05

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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.