Home / 2,116,907.10-2,921,582.26-1,257,470.78

Finding the Fourth Proportional to 2,116,907.10, 2,921,582.26 and 1,257,470.78

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Solution

The fourth proportional to 2,116,907.10, 2,921,582.26 and 1,257,470.78 is: 1,735,458.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116,907.10 : 2,921,582.26 = 1,257,470.78 : x
  2. Step 2: Convert to fraction form
    2,116,907.10/2,921,582.26 = 1,257,470.78/x
  3. Step 3: Cross multiply
    2,116,907.10x = 2,921,582.26 × 1,257,470.78
  4. Step 4: Simplify right side
    2,116,907.10x = 3,673,804,323,316.36
  5. Step 5: Solve for x
    x = 3,673,804,323,316.36/2,116,907.10
  6. Step 6: Final answer
    x = 1,735,458.45

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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.