Home / 2,900,999.80-4,351,499.70-771,299.20

Finding the Fourth Proportional to 2,900,999.80, 4,351,499.70 and 771,299.20

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Solution

The fourth proportional to 2,900,999.80, 4,351,499.70 and 771,299.20 is: 1,156,948.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900,999.80 : 4,351,499.70 = 771,299.20 : x
  2. Step 2: Convert to fraction form
    2,900,999.80/4,351,499.70 = 771,299.20/x
  3. Step 3: Cross multiply
    2,900,999.80x = 4,351,499.70 × 771,299.20
  4. Step 4: Simplify right side
    2,900,999.80x = 3,356,308,237,410.24
  5. Step 5: Solve for x
    x = 3,356,308,237,410.24/2,900,999.80
  6. Step 6: Final answer
    x = 1,156,948.80

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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.