Home / 859,682.11-1,289,444.10-290,998.21

Finding the Fourth Proportional to 859,682.11, 1,289,444.10 and 290,998.21

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Solution

The fourth proportional to 859,682.11, 1,289,444.10 and 290,998.21 is: 436,470.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,682.11 : 1,289,444.10 = 290,998.21 : x
  2. Step 2: Convert to fraction form
    859,682.11/1,289,444.10 = 290,998.21/x
  3. Step 3: Cross multiply
    859,682.11x = 1,289,444.10 × 290,998.21
  4. Step 4: Simplify right side
    859,682.11x = 375,225,921,771.45
  5. Step 5: Solve for x
    x = 375,225,921,771.45/859,682.11
  6. Step 6: Final answer
    x = 436,470.55

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1.5x scale

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.