Home / 1,209,825.70-1,814,738.55-620,001.70

Finding the Fourth Proportional to 1,209,825.70, 1,814,738.55 and 620,001.70

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Solution

The fourth proportional to 1,209,825.70, 1,814,738.55 and 620,001.70 is: 930,002.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,825.70 : 1,814,738.55 = 620,001.70 : x
  2. Step 2: Convert to fraction form
    1,209,825.70/1,814,738.55 = 620,001.70/x
  3. Step 3: Cross multiply
    1,209,825.70x = 1,814,738.55 × 620,001.70
  4. Step 4: Simplify right side
    1,209,825.70x = 1,125,140,986,055.53
  5. Step 5: Solve for x
    x = 1,125,140,986,055.53/1,209,825.70
  6. Step 6: Final answer
    x = 930,002.55

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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.