Home / 2,128,236.40-2,937,028.65-1,161,429.11

Finding the Fourth Proportional to 2,128,236.40, 2,937,028.65 and 1,161,429.11

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Solution

The fourth proportional to 2,128,236.40, 2,937,028.65 and 1,161,429.11 is: 1,602,806.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,236.40 : 2,937,028.65 = 1,161,429.11 : x
  2. Step 2: Convert to fraction form
    2,128,236.40/2,937,028.65 = 1,161,429.11/x
  3. Step 3: Cross multiply
    2,128,236.40x = 2,937,028.65 × 1,161,429.11
  4. Step 4: Simplify right side
    2,128,236.40x = 3,411,150,565,206.86
  5. Step 5: Solve for x
    x = 3,411,150,565,206.86/2,128,236.40
  6. Step 6: Final answer
    x = 1,602,806.23

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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.