Home / 961,734.72-1,442,733.24-400,638

Finding the Fourth Proportional to 961,734.72, 1,442,733.24 and 400,638

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Solution

The fourth proportional to 961,734.72, 1,442,733.24 and 400,638 is: 601,011.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,734.72 : 1,442,733.24 = 400,638 : x
  2. Step 2: Convert to fraction form
    961,734.72/1,442,733.24 = 400,638/x
  3. Step 3: Cross multiply
    961,734.72x = 1,442,733.24 × 400,638
  4. Step 4: Simplify right side
    961,734.72x = 578,013,759,807.12
  5. Step 5: Solve for x
    x = 578,013,759,807.12/961,734.72
  6. Step 6: Final answer
    x = 601,011.64

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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.