Home / 1,239,628.48-1,859,197.68-340,838.32

Finding the Fourth Proportional to 1,239,628.48, 1,859,197.68 and 340,838.32

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Solution

The fourth proportional to 1,239,628.48, 1,859,197.68 and 340,838.32 is: 511,190.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,628.48 : 1,859,197.68 = 340,838.32 : x
  2. Step 2: Convert to fraction form
    1,239,628.48/1,859,197.68 = 340,838.32/x
  3. Step 3: Cross multiply
    1,239,628.48x = 1,859,197.68 × 340,838.32
  4. Step 4: Simplify right side
    1,239,628.48x = 633,685,813,799.10
  5. Step 5: Solve for x
    x = 633,685,813,799.10/1,239,628.48
  6. Step 6: Final answer
    x = 511,190.11

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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.