Home / 554,795.21-831,457.15-284,912.45

Finding the Fourth Proportional to 554,795.21, 831,457.15 and 284,912.45

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Solution

The fourth proportional to 554,795.21, 831,457.15 and 284,912.45 is: 426,990.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,795.21 : 831,457.15 = 284,912.45 : x
  2. Step 2: Convert to fraction form
    554,795.21/831,457.15 = 284,912.45/x
  3. Step 3: Cross multiply
    554,795.21x = 831,457.15 × 284,912.45
  4. Step 4: Simplify right side
    554,795.21x = 236,892,491,924.92
  5. Step 5: Solve for x
    x = 236,892,491,924.92/554,795.21
  6. Step 6: Final answer
    x = 426,990.87

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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.