Home / 873,125.86-1,309,689.12-392,792.59

Finding the Fourth Proportional to 873,125.86, 1,309,689.12 and 392,792.59

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Solution

The fourth proportional to 873,125.86, 1,309,689.12 and 392,792.59 is: 589,189.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,125.86 : 1,309,689.12 = 392,792.59 : x
  2. Step 2: Convert to fraction form
    873,125.86/1,309,689.12 = 392,792.59/x
  3. Step 3: Cross multiply
    873,125.86x = 1,309,689.12 × 392,792.59
  4. Step 4: Simplify right side
    873,125.86x = 514,436,181,539.62
  5. Step 5: Solve for x
    x = 514,436,181,539.62/873,125.86
  6. Step 6: Final answer
    x = 589,189.03

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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.