Home / 2,642,497.76-3,963,828.89-1,257,328.17

Finding the Fourth Proportional to 2,642,497.76, 3,963,828.89 and 1,257,328.17

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Solution

The fourth proportional to 2,642,497.76, 3,963,828.89 and 1,257,328.17 is: 1,886,031.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642,497.76 : 3,963,828.89 = 1,257,328.17 : x
  2. Step 2: Convert to fraction form
    2,642,497.76/3,963,828.89 = 1,257,328.17/x
  3. Step 3: Cross multiply
    2,642,497.76x = 3,963,828.89 × 1,257,328.17
  4. Step 4: Simplify right side
    2,642,497.76x = 4,983,833,727,600.15
  5. Step 5: Solve for x
    x = 4,983,833,727,600.15/2,642,497.76
  6. Step 6: Final answer
    x = 1,886,031.39

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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.