Home / 762,909.88-1,050,415.14-647,941.72

Finding the Fourth Proportional to 762,909.88, 1,050,415.14 and 647,941.72

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Solution

The fourth proportional to 762,909.88, 1,050,415.14 and 647,941.72 is: 892,120.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,909.88 : 1,050,415.14 = 647,941.72 : x
  2. Step 2: Convert to fraction form
    762,909.88/1,050,415.14 = 647,941.72/x
  3. Step 3: Cross multiply
    762,909.88x = 1,050,415.14 × 647,941.72
  4. Step 4: Simplify right side
    762,909.88x = 680,607,792,525.64
  5. Step 5: Solve for x
    x = 680,607,792,525.64/762,909.88
  6. Step 6: Final answer
    x = 892,120.83

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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.