Home / 1,916,303.89-2,643,831.51-1,228,355.07

Finding the Fourth Proportional to 1,916,303.89, 2,643,831.51 and 1,228,355.07

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Solution

The fourth proportional to 1,916,303.89, 2,643,831.51 and 1,228,355.07 is: 1,694,701.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916,303.89 : 2,643,831.51 = 1,228,355.07 : x
  2. Step 2: Convert to fraction form
    1,916,303.89/2,643,831.51 = 1,228,355.07/x
  3. Step 3: Cross multiply
    1,916,303.89x = 2,643,831.51 × 1,228,355.07
  4. Step 4: Simplify right side
    1,916,303.89x = 3,247,563,839,534.26
  5. Step 5: Solve for x
    x = 3,247,563,839,534.26/1,916,303.89
  6. Step 6: Final answer
    x = 1,694,701.90

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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.