Home / 493,334.10-680,583.81-289,281.42

Finding the Fourth Proportional to 493,334.10, 680,583.81 and 289,281.42

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Solution

The fourth proportional to 493,334.10, 680,583.81 and 289,281.42 is: 399,080.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,334.10 : 680,583.81 = 289,281.42 : x
  2. Step 2: Convert to fraction form
    493,334.10/680,583.81 = 289,281.42/x
  3. Step 3: Cross multiply
    493,334.10x = 680,583.81 × 289,281.42
  4. Step 4: Simplify right side
    493,334.10x = 196,880,250,985.81
  5. Step 5: Solve for x
    x = 196,880,250,985.81/493,334.10
  6. Step 6: Final answer
    x = 399,080.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.