Home / 1,389,400.52-2,084,061.90-442,828.04

Finding the Fourth Proportional to 1,389,400.52, 2,084,061.90 and 442,828.04

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Solution

The fourth proportional to 1,389,400.52, 2,084,061.90 and 442,828.04 is: 664,229.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,400.52 : 2,084,061.90 = 442,828.04 : x
  2. Step 2: Convert to fraction form
    1,389,400.52/2,084,061.90 = 442,828.04/x
  3. Step 3: Cross multiply
    1,389,400.52x = 2,084,061.90 × 442,828.04
  4. Step 4: Simplify right side
    1,389,400.52x = 922,881,046,415.68
  5. Step 5: Solve for x
    x = 922,881,046,415.68/1,389,400.52
  6. Step 6: Final answer
    x = 664,229.67

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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.