Home / 1,077,775.92-1,487,616.98-636,637.37

Finding the Fourth Proportional to 1,077,775.92, 1,487,616.98 and 636,637.37

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Solution

The fourth proportional to 1,077,775.92, 1,487,616.98 and 636,637.37 is: 878,728.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,775.92 : 1,487,616.98 = 636,637.37 : x
  2. Step 2: Convert to fraction form
    1,077,775.92/1,487,616.98 = 636,637.37/x
  3. Step 3: Cross multiply
    1,077,775.92x = 1,487,616.98 × 636,637.37
  4. Step 4: Simplify right side
    1,077,775.92x = 947,072,551,093.27
  5. Step 5: Solve for x
    x = 947,072,551,093.27/1,077,775.92
  6. Step 6: Final answer
    x = 878,728.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.