Home / 1,355,110.51-1,870,055.18-743,268.25

Finding the Fourth Proportional to 1,355,110.51, 1,870,055.18 and 743,268.25

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Solution

The fourth proportional to 1,355,110.51, 1,870,055.18 and 743,268.25 is: 1,025,711.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,110.51 : 1,870,055.18 = 743,268.25 : x
  2. Step 2: Convert to fraction form
    1,355,110.51/1,870,055.18 = 743,268.25/x
  3. Step 3: Cross multiply
    1,355,110.51x = 1,870,055.18 × 743,268.25
  4. Step 4: Simplify right side
    1,355,110.51x = 1,389,952,640,360.08
  5. Step 5: Solve for x
    x = 1,389,952,640,360.08/1,355,110.51
  6. Step 6: Final answer
    x = 1,025,711.65

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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.