Home / 830,531.70-1,245,797.55-620,579.70

Finding the Fourth Proportional to 830,531.70, 1,245,797.55 and 620,579.70

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Solution

The fourth proportional to 830,531.70, 1,245,797.55 and 620,579.70 is: 930,869.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,531.70 : 1,245,797.55 = 620,579.70 : x
  2. Step 2: Convert to fraction form
    830,531.70/1,245,797.55 = 620,579.70/x
  3. Step 3: Cross multiply
    830,531.70x = 1,245,797.55 × 620,579.70
  4. Step 4: Simplify right side
    830,531.70x = 773,116,669,839.74
  5. Step 5: Solve for x
    x = 773,116,669,839.74/830,531.70
  6. Step 6: Final answer
    x = 930,869.55

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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.