Home / 2,112,885.80-3,168,534.36-764,715.32

Finding the Fourth Proportional to 2,112,885.80, 3,168,534.36 and 764,715.32

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Solution

The fourth proportional to 2,112,885.80, 3,168,534.36 and 764,715.32 is: 1,146,785.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112,885.80 : 3,168,534.36 = 764,715.32 : x
  2. Step 2: Convert to fraction form
    2,112,885.80/3,168,534.36 = 764,715.32/x
  3. Step 3: Cross multiply
    2,112,885.80x = 3,168,534.36 × 764,715.32
  4. Step 4: Simplify right side
    2,112,885.80x = 2,423,026,767,038.40
  5. Step 5: Solve for x
    x = 2,423,026,767,038.40/2,112,885.80
  6. Step 6: Final answer
    x = 1,146,785.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.