Home / 2,578,696.02-3,868,039.80-685,437.48

Finding the Fourth Proportional to 2,578,696.02, 3,868,039.80 and 685,437.48

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Solution

The fourth proportional to 2,578,696.02, 3,868,039.80 and 685,437.48 is: 1,028,155.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,696.02 : 3,868,039.80 = 685,437.48 : x
  2. Step 2: Convert to fraction form
    2,578,696.02/3,868,039.80 = 685,437.48/x
  3. Step 3: Cross multiply
    2,578,696.02x = 3,868,039.80 × 685,437.48
  4. Step 4: Simplify right side
    2,578,696.02x = 2,651,299,453,051.70
  5. Step 5: Solve for x
    x = 2,651,299,453,051.70/2,578,696.02
  6. Step 6: Final answer
    x = 1,028,155.10

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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.