Home / 1,286,301.84-1,929,469.08-487,368.78

Finding the Fourth Proportional to 1,286,301.84, 1,929,469.08 and 487,368.78

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Solution

The fourth proportional to 1,286,301.84, 1,929,469.08 and 487,368.78 is: 731,059.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,301.84 : 1,929,469.08 = 487,368.78 : x
  2. Step 2: Convert to fraction form
    1,286,301.84/1,929,469.08 = 487,368.78/x
  3. Step 3: Cross multiply
    1,286,301.84x = 1,929,469.08 × 487,368.78
  4. Step 4: Simplify right side
    1,286,301.84x = 940,362,991,567.32
  5. Step 5: Solve for x
    x = 940,362,991,567.32/1,286,301.84
  6. Step 6: Final answer
    x = 731,059.35

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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.