Home / 1,489,782.72-2,234,685.42-424,823.88

Finding the Fourth Proportional to 1,489,782.72, 2,234,685.42 and 424,823.88

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Solution

The fourth proportional to 1,489,782.72, 2,234,685.42 and 424,823.88 is: 637,239.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,782.72 : 2,234,685.42 = 424,823.88 : x
  2. Step 2: Convert to fraction form
    1,489,782.72/2,234,685.42 = 424,823.88/x
  3. Step 3: Cross multiply
    1,489,782.72x = 2,234,685.42 × 424,823.88
  4. Step 4: Simplify right side
    1,489,782.72x = 949,347,730,703.83
  5. Step 5: Solve for x
    x = 949,347,730,703.83/1,489,782.72
  6. Step 6: Final answer
    x = 637,239.05

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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.