Home / 1,551,880.40-2,140,381.72-1,008,191.37

Finding the Fourth Proportional to 1,551,880.40, 2,140,381.72 and 1,008,191.37

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Solution

The fourth proportional to 1,551,880.40, 2,140,381.72 and 1,008,191.37 is: 1,390,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551,880.40 : 2,140,381.72 = 1,008,191.37 : x
  2. Step 2: Convert to fraction form
    1,551,880.40/2,140,381.72 = 1,008,191.37/x
  3. Step 3: Cross multiply
    1,551,880.40x = 2,140,381.72 × 1,008,191.37
  4. Step 4: Simplify right side
    1,551,880.40x = 2,157,914,372,803.28
  5. Step 5: Solve for x
    x = 2,157,914,372,803.28/1,551,880.40
  6. Step 6: Final answer
    x = 1,390,515.90

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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.