Home / 1,330,709.90-1,996,064.85-620,809.70

Finding the Fourth Proportional to 1,330,709.90, 1,996,064.85 and 620,809.70

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Solution

The fourth proportional to 1,330,709.90, 1,996,064.85 and 620,809.70 is: 931,214.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,709.90 : 1,996,064.85 = 620,809.70 : x
  2. Step 2: Convert to fraction form
    1,330,709.90/1,996,064.85 = 620,809.70/x
  3. Step 3: Cross multiply
    1,330,709.90x = 1,996,064.85 × 620,809.70
  4. Step 4: Simplify right side
    1,330,709.90x = 1,239,176,420,709.05
  5. Step 5: Solve for x
    x = 1,239,176,420,709.05/1,330,709.90
  6. Step 6: Final answer
    x = 931,214.55

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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.