Home / 1,400,331.60-2,095,831.80-1,288,357.20

Finding the Fourth Proportional to 1,400,331.60, 2,095,831.80 and 1,288,357.20

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Solution

The fourth proportional to 1,400,331.60, 2,095,831.80 and 1,288,357.20 is: 1,928,243.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,331.60 : 2,095,831.80 = 1,288,357.20 : x
  2. Step 2: Convert to fraction form
    1,400,331.60/2,095,831.80 = 1,288,357.20/x
  3. Step 3: Cross multiply
    1,400,331.60x = 2,095,831.80 × 1,288,357.20
  4. Step 4: Simplify right side
    1,400,331.60x = 2,700,179,989,518.96
  5. Step 5: Solve for x
    x = 2,700,179,989,518.96/1,400,331.60
  6. Step 6: Final answer
    x = 1,928,243.27

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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.