Home / 1,355,306.57-1,870,305.61-774,523.05

Finding the Fourth Proportional to 1,355,306.57, 1,870,305.61 and 774,523.05

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Solution

The fourth proportional to 1,355,306.57, 1,870,305.61 and 774,523.05 is: 1,068,831.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,306.57 : 1,870,305.61 = 774,523.05 : x
  2. Step 2: Convert to fraction form
    1,355,306.57/1,870,305.61 = 774,523.05/x
  3. Step 3: Cross multiply
    1,355,306.57x = 1,870,305.61 × 774,523.05
  4. Step 4: Simplify right side
    1,355,306.57x = 1,448,594,805,489.31
  5. Step 5: Solve for x
    x = 1,448,594,805,489.31/1,355,306.57
  6. Step 6: Final answer
    x = 1,068,831.83

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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.