Home / 788,810.20-1,183,215.30-490,211.80

Finding the Fourth Proportional to 788,810.20, 1,183,215.30 and 490,211.80

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Solution

The fourth proportional to 788,810.20, 1,183,215.30 and 490,211.80 is: 735,317.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,810.20 : 1,183,215.30 = 490,211.80 : x
  2. Step 2: Convert to fraction form
    788,810.20/1,183,215.30 = 490,211.80/x
  3. Step 3: Cross multiply
    788,810.20x = 1,183,215.30 × 490,211.80
  4. Step 4: Simplify right side
    788,810.20x = 580,026,102,000.54
  5. Step 5: Solve for x
    x = 580,026,102,000.54/788,810.20
  6. Step 6: Final answer
    x = 735,317.70

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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.