Home / 1,915,478.29-2,643,378.39-1,056,069.37

Finding the Fourth Proportional to 1,915,478.29, 2,643,378.39 and 1,056,069.37

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Solution

The fourth proportional to 1,915,478.29, 2,643,378.39 and 1,056,069.37 is: 1,457,385.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,478.29 : 2,643,378.39 = 1,056,069.37 : x
  2. Step 2: Convert to fraction form
    1,915,478.29/2,643,378.39 = 1,056,069.37/x
  3. Step 3: Cross multiply
    1,915,478.29x = 2,643,378.39 × 1,056,069.37
  4. Step 4: Simplify right side
    1,915,478.29x = 2,791,590,932,501.68
  5. Step 5: Solve for x
    x = 2,791,590,932,501.68/1,915,478.29
  6. Step 6: Final answer
    x = 1,457,385.84

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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.