Home / 1,286,931.21-1,775,964.37-706,158.15

Finding the Fourth Proportional to 1,286,931.21, 1,775,964.37 and 706,158.15

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Solution

The fourth proportional to 1,286,931.21, 1,775,964.37 and 706,158.15 is: 974,497.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,931.21 : 1,775,964.37 = 706,158.15 : x
  2. Step 2: Convert to fraction form
    1,286,931.21/1,775,964.37 = 706,158.15/x
  3. Step 3: Cross multiply
    1,286,931.21x = 1,775,964.37 × 706,158.15
  4. Step 4: Simplify right side
    1,286,931.21x = 1,254,111,709,892.73
  5. Step 5: Solve for x
    x = 1,254,111,709,892.73/1,286,931.21
  6. Step 6: Final answer
    x = 974,497.86

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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.