Home / 873,135.48-1,309,703.58-392,802.24

Finding the Fourth Proportional to 873,135.48, 1,309,703.58 and 392,802.24

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Solution

The fourth proportional to 873,135.48, 1,309,703.58 and 392,802.24 is: 589,203.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,135.48 : 1,309,703.58 = 392,802.24 : x
  2. Step 2: Convert to fraction form
    873,135.48/1,309,703.58 = 392,802.24/x
  3. Step 3: Cross multiply
    873,135.48x = 1,309,703.58 × 392,802.24
  4. Step 4: Simplify right side
    873,135.48x = 514,454,499,960.02
  5. Step 5: Solve for x
    x = 514,454,499,960.02/873,135.48
  6. Step 6: Final answer
    x = 589,203.52

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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.