Home / 1,209,961.60-1,810,382.23-721,838.59

Finding the Fourth Proportional to 1,209,961.60, 1,810,382.23 and 721,838.59

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Solution

The fourth proportional to 1,209,961.60, 1,810,382.23 and 721,838.59 is: 1,080,037.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,961.60 : 1,810,382.23 = 721,838.59 : x
  2. Step 2: Convert to fraction form
    1,209,961.60/1,810,382.23 = 721,838.59/x
  3. Step 3: Cross multiply
    1,209,961.60x = 1,810,382.23 × 721,838.59
  4. Step 4: Simplify right side
    1,209,961.60x = 1,306,803,756,264.26
  5. Step 5: Solve for x
    x = 1,306,803,756,264.26/1,209,961.60
  6. Step 6: Final answer
    x = 1,080,037.38

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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.