Home / 1,212,419.68-1,817,643.24-453,836.25

Finding the Fourth Proportional to 1,212,419.68, 1,817,643.24 and 453,836.25

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Solution

The fourth proportional to 1,212,419.68, 1,817,643.24 and 453,836.25 is: 680,385.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,419.68 : 1,817,643.24 = 453,836.25 : x
  2. Step 2: Convert to fraction form
    1,212,419.68/1,817,643.24 = 453,836.25/x
  3. Step 3: Cross multiply
    1,212,419.68x = 1,817,643.24 × 453,836.25
  4. Step 4: Simplify right side
    1,212,419.68x = 824,912,391,879.45
  5. Step 5: Solve for x
    x = 824,912,391,879.45/1,212,419.68
  6. Step 6: Final answer
    x = 680,385.19

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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.