Home / 873,153.62-1,309,730.88-392,820.53

Finding the Fourth Proportional to 873,153.62, 1,309,730.88 and 392,820.53

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Solution

The fourth proportional to 873,153.62, 1,309,730.88 and 392,820.53 is: 589,231.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,153.62 : 1,309,730.88 = 392,820.53 : x
  2. Step 2: Convert to fraction form
    873,153.62/1,309,730.88 = 392,820.53/x
  3. Step 3: Cross multiply
    873,153.62x = 1,309,730.88 × 392,820.53
  4. Step 4: Simplify right side
    873,153.62x = 514,489,178,438.97
  5. Step 5: Solve for x
    x = 514,489,178,438.97/873,153.62
  6. Step 6: Final answer
    x = 589,231.00

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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.