Home / 1,267,388.64-1,901,322.72-509,289.12

Finding the Fourth Proportional to 1,267,388.64, 1,901,322.72 and 509,289.12

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Solution

The fourth proportional to 1,267,388.64, 1,901,322.72 and 509,289.12 is: 764,030.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,388.64 : 1,901,322.72 = 509,289.12 : x
  2. Step 2: Convert to fraction form
    1,267,388.64/1,901,322.72 = 509,289.12/x
  3. Step 3: Cross multiply
    1,267,388.64x = 1,901,322.72 × 509,289.12
  4. Step 4: Simplify right side
    1,267,388.64x = 968,322,974,904.81
  5. Step 5: Solve for x
    x = 968,322,974,904.81/1,267,388.64
  6. Step 6: Final answer
    x = 764,030.03

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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.