Home / 479,790.18-720,124.23-243,296.10

Finding the Fourth Proportional to 479,790.18, 720,124.23 and 243,296.10

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Solution

The fourth proportional to 479,790.18, 720,124.23 and 243,296.10 is: 365,166.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,790.18 : 720,124.23 = 243,296.10 : x
  2. Step 2: Convert to fraction form
    479,790.18/720,124.23 = 243,296.10/x
  3. Step 3: Cross multiply
    479,790.18x = 720,124.23 × 243,296.10
  4. Step 4: Simplify right side
    479,790.18x = 175,203,416,674.50
  5. Step 5: Solve for x
    x = 175,203,416,674.50/479,790.18
  6. Step 6: Final answer
    x = 365,166.74

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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.