Home / 896,618.72-1,345,008.84-289,421.43

Finding the Fourth Proportional to 896,618.72, 1,345,008.84 and 289,421.43

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Solution

The fourth proportional to 896,618.72, 1,345,008.84 and 289,421.43 is: 434,158.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,618.72 : 1,345,008.84 = 289,421.43 : x
  2. Step 2: Convert to fraction form
    896,618.72/1,345,008.84 = 289,421.43/x
  3. Step 3: Cross multiply
    896,618.72x = 1,345,008.84 × 289,421.43
  4. Step 4: Simplify right side
    896,618.72x = 389,274,375,110.40
  5. Step 5: Solve for x
    x = 389,274,375,110.40/896,618.72
  6. Step 6: Final answer
    x = 434,158.21

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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.