Home / 1,228,413-1,694,307.60-814,200.72

Finding the Fourth Proportional to 1,228,413, 1,694,307.60 and 814,200.72

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Solution

The fourth proportional to 1,228,413, 1,694,307.60 and 814,200.72 is: 1,122,998.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,413 : 1,694,307.60 = 814,200.72 : x
  2. Step 2: Convert to fraction form
    1,228,413/1,694,307.60 = 814,200.72/x
  3. Step 3: Cross multiply
    1,228,413x = 1,694,307.60 × 814,200.72
  4. Step 4: Simplify right side
    1,228,413x = 1,379,506,467,821.47
  5. Step 5: Solve for x
    x = 1,379,506,467,821.47/1,228,413
  6. Step 6: Final answer
    x = 1,122,998.92

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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.