Home / 1,536,690.45-2,120,910.41-916,535.39

Finding the Fourth Proportional to 1,536,690.45, 2,120,910.41 and 916,535.39

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Solution

The fourth proportional to 1,536,690.45, 2,120,910.41 and 916,535.39 is: 1,264,984.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536,690.45 : 2,120,910.41 = 916,535.39 : x
  2. Step 2: Convert to fraction form
    1,536,690.45/2,120,910.41 = 916,535.39/x
  3. Step 3: Cross multiply
    1,536,690.45x = 2,120,910.41 × 916,535.39
  4. Step 4: Simplify right side
    1,536,690.45x = 1,943,889,449,784.41
  5. Step 5: Solve for x
    x = 1,943,889,449,784.41/1,536,690.45
  6. Step 6: Final answer
    x = 1,264,984.40

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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.