Home / 947,204.64-1,421,028.86-647,826.21

Finding the Fourth Proportional to 947,204.64, 1,421,028.86 and 647,826.21

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Solution

The fourth proportional to 947,204.64, 1,421,028.86 and 647,826.21 is: 971,891.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,204.64 : 1,421,028.86 = 647,826.21 : x
  2. Step 2: Convert to fraction form
    947,204.64/1,421,028.86 = 647,826.21/x
  3. Step 3: Cross multiply
    947,204.64x = 1,421,028.86 × 647,826.21
  4. Step 4: Simplify right side
    947,204.64x = 920,579,737,435.29
  5. Step 5: Solve for x
    x = 920,579,737,435.29/947,204.64
  6. Step 6: Final answer
    x = 971,891.08

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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.