Home / 579,833.20-869,749.80-540,467.20

Finding the Fourth Proportional to 579,833.20, 869,749.80 and 540,467.20

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Solution

The fourth proportional to 579,833.20, 869,749.80 and 540,467.20 is: 810,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,833.20 : 869,749.80 = 540,467.20 : x
  2. Step 2: Convert to fraction form
    579,833.20/869,749.80 = 540,467.20/x
  3. Step 3: Cross multiply
    579,833.20x = 869,749.80 × 540,467.20
  4. Step 4: Simplify right side
    579,833.20x = 470,071,239,106.56
  5. Step 5: Solve for x
    x = 470,071,239,106.56/579,833.20
  6. Step 6: Final answer
    x = 810,700.80

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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.