Home / 1,898,155.90-2,619,455.34-1,038,716.32

Finding the Fourth Proportional to 1,898,155.90, 2,619,455.34 and 1,038,716.32

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Solution

The fourth proportional to 1,898,155.90, 2,619,455.34 and 1,038,716.32 is: 1,433,428.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898,155.90 : 2,619,455.34 = 1,038,716.32 : x
  2. Step 2: Convert to fraction form
    1,898,155.90/2,619,455.34 = 1,038,716.32/x
  3. Step 3: Cross multiply
    1,898,155.90x = 2,619,455.34 × 1,038,716.32
  4. Step 4: Simplify right side
    1,898,155.90x = 2,720,871,011,169.15
  5. Step 5: Solve for x
    x = 2,720,871,011,169.15/1,898,155.90
  6. Step 6: Final answer
    x = 1,433,428.63

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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.