Home / 1,212,902.10-1,817,166.15-580,421.70

Finding the Fourth Proportional to 1,212,902.10, 1,817,166.15 and 580,421.70

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Solution

The fourth proportional to 1,212,902.10, 1,817,166.15 and 580,421.70 is: 869,585.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,902.10 : 1,817,166.15 = 580,421.70 : x
  2. Step 2: Convert to fraction form
    1,212,902.10/1,817,166.15 = 580,421.70/x
  3. Step 3: Cross multiply
    1,212,902.10x = 1,817,166.15 × 580,421.70
  4. Step 4: Simplify right side
    1,212,902.10x = 1,054,722,665,965.45
  5. Step 5: Solve for x
    x = 1,054,722,665,965.45/1,212,902.10
  6. Step 6: Final answer
    x = 869,585.98

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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.