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Finding the Fourth Proportional to 1,258,935.96, 1,888,962.18 and 659,754.68

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Solution

The fourth proportional to 1,258,935.96, 1,888,962.18 and 659,754.68 is: 989,924.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,935.96 : 1,888,962.18 = 659,754.68 : x
  2. Step 2: Convert to fraction form
    1,258,935.96/1,888,962.18 = 659,754.68/x
  3. Step 3: Cross multiply
    1,258,935.96x = 1,888,962.18 × 659,754.68
  4. Step 4: Simplify right side
    1,258,935.96x = 1,246,251,638,598.00
  5. Step 5: Solve for x
    x = 1,246,251,638,598.00/1,258,935.96
  6. Step 6: Final answer
    x = 989,924.57

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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.