Home / 1,915,028.87-2,872,518.70-636,224.36

Finding the Fourth Proportional to 1,915,028.87, 2,872,518.70 and 636,224.36

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Solution

The fourth proportional to 1,915,028.87, 2,872,518.70 and 636,224.36 is: 954,328.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,028.87 : 2,872,518.70 = 636,224.36 : x
  2. Step 2: Convert to fraction form
    1,915,028.87/2,872,518.70 = 636,224.36/x
  3. Step 3: Cross multiply
    1,915,028.87x = 2,872,518.70 × 636,224.36
  4. Step 4: Simplify right side
    1,915,028.87x = 1,827,566,371,495.53
  5. Step 5: Solve for x
    x = 1,827,566,371,495.53/1,915,028.87
  6. Step 6: Final answer
    x = 954,328.37

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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.