Home / 509,333,609.20-764,000,413.80-407,296,937.20

Finding the Fourth Proportional to 509,333,609.20, 764,000,413.80 and 407,296,937.20

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Solution

The fourth proportional to 509,333,609.20, 764,000,413.80 and 407,296,937.20 is: 610,945,405.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,333,609.20 : 764,000,413.80 = 407,296,937.20 : x
  2. Step 2: Convert to fraction form
    509,333,609.20/764,000,413.80 = 407,296,937.20/x
  3. Step 3: Cross multiply
    509,333,609.20x = 764,000,413.80 × 407,296,937.20
  4. Step 4: Simplify right side
    509,333,609.20x = 311,175,028,560,272,576
  5. Step 5: Solve for x
    x = 311,175,028,560,272,576/509,333,609.20
  6. Step 6: Final answer
    x = 610,945,405.80

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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.