Home / 1,115,335.82-1,539,136.40-625,272.86

Finding the Fourth Proportional to 1,115,335.82, 1,539,136.40 and 625,272.86

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Solution

The fourth proportional to 1,115,335.82, 1,539,136.40 and 625,272.86 is: 862,861.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,335.82 : 1,539,136.40 = 625,272.86 : x
  2. Step 2: Convert to fraction form
    1,115,335.82/1,539,136.40 = 625,272.86/x
  3. Step 3: Cross multiply
    1,115,335.82x = 1,539,136.40 × 625,272.86
  4. Step 4: Simplify right side
    1,115,335.82x = 962,380,218,758.10
  5. Step 5: Solve for x
    x = 962,380,218,758.10/1,115,335.82
  6. Step 6: Final answer
    x = 862,861.39

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1.5x scale

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.