Home / 1,430,607.12-2,145,905.21-365,647.47

Finding the Fourth Proportional to 1,430,607.12, 2,145,905.21 and 365,647.47

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Solution

The fourth proportional to 1,430,607.12, 2,145,905.21 and 365,647.47 is: 548,469.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,607.12 : 2,145,905.21 = 365,647.47 : x
  2. Step 2: Convert to fraction form
    1,430,607.12/2,145,905.21 = 365,647.47/x
  3. Step 3: Cross multiply
    1,430,607.12x = 2,145,905.21 × 365,647.47
  4. Step 4: Simplify right side
    1,430,607.12x = 784,644,801,706.53
  5. Step 5: Solve for x
    x = 784,644,801,706.53/1,430,607.12
  6. Step 6: Final answer
    x = 548,469.80

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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.