Home / 1,616,742.45-2,231,075.12-891,657.18

Finding the Fourth Proportional to 1,616,742.45, 2,231,075.12 and 891,657.18

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Solution

The fourth proportional to 1,616,742.45, 2,231,075.12 and 891,657.18 is: 1,230,470.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,616,742.45 : 2,231,075.12 = 891,657.18 : x
  2. Step 2: Convert to fraction form
    1,616,742.45/2,231,075.12 = 891,657.18/x
  3. Step 3: Cross multiply
    1,616,742.45x = 2,231,075.12 × 891,657.18
  4. Step 4: Simplify right side
    1,616,742.45x = 1,989,354,149,867.36
  5. Step 5: Solve for x
    x = 1,989,354,149,867.36/1,616,742.45
  6. Step 6: Final answer
    x = 1,230,470.66

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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.