Home / 663,911.66-993,929.81-493,887.53

Finding the Fourth Proportional to 663,911.66, 993,929.81 and 493,887.53

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Solution

The fourth proportional to 663,911.66, 993,929.81 and 493,887.53 is: 739,389.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,911.66 : 993,929.81 = 493,887.53 : x
  2. Step 2: Convert to fraction form
    663,911.66/993,929.81 = 493,887.53/x
  3. Step 3: Cross multiply
    663,911.66x = 993,929.81 × 493,887.53
  4. Step 4: Simplify right side
    663,911.66x = 490,889,531,415.18
  5. Step 5: Solve for x
    x = 490,889,531,415.18/663,911.66
  6. Step 6: Final answer
    x = 739,389.84

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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.