Home / 1,240,390.37-1,859,404.56-398,351.63

Finding the Fourth Proportional to 1,240,390.37, 1,859,404.56 and 398,351.63

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Solution

The fourth proportional to 1,240,390.37, 1,859,404.56 and 398,351.63 is: 597,148.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,390.37 : 1,859,404.56 = 398,351.63 : x
  2. Step 2: Convert to fraction form
    1,240,390.37/1,859,404.56 = 398,351.63/x
  3. Step 3: Cross multiply
    1,240,390.37x = 1,859,404.56 × 398,351.63
  4. Step 4: Simplify right side
    1,240,390.37x = 740,696,837,305.43
  5. Step 5: Solve for x
    x = 740,696,837,305.43/1,240,390.37
  6. Step 6: Final answer
    x = 597,148.17

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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.