Home / 1,211,830.15-1,817,791.40-453,591.79

Finding the Fourth Proportional to 1,211,830.15, 1,817,791.40 and 453,591.79

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Solution

The fourth proportional to 1,211,830.15, 1,817,791.40 and 453,591.79 is: 680,404.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,830.15 : 1,817,791.40 = 453,591.79 : x
  2. Step 2: Convert to fraction form
    1,211,830.15/1,817,791.40 = 453,591.79/x
  3. Step 3: Cross multiply
    1,211,830.15x = 1,817,791.40 × 453,591.79
  4. Step 4: Simplify right side
    1,211,830.15x = 824,535,254,972.61
  5. Step 5: Solve for x
    x = 824,535,254,972.61/1,211,830.15
  6. Step 6: Final answer
    x = 680,404.97

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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.