Home / 872,509.55-1,309,990.43-446,351.06

Finding the Fourth Proportional to 872,509.55, 1,309,990.43 and 446,351.06

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Solution

The fourth proportional to 872,509.55, 1,309,990.43 and 446,351.06 is: 670,153.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,509.55 : 1,309,990.43 = 446,351.06 : x
  2. Step 2: Convert to fraction form
    872,509.55/1,309,990.43 = 446,351.06/x
  3. Step 3: Cross multiply
    872,509.55x = 1,309,990.43 × 446,351.06
  4. Step 4: Simplify right side
    872,509.55x = 584,715,621,411.21
  5. Step 5: Solve for x
    x = 584,715,621,411.21/872,509.55
  6. Step 6: Final answer
    x = 670,153.84

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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.