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Finding the Fourth Proportional to 1,984,846.32, 2,977,447.08 and 770,394.51

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Solution

The fourth proportional to 1,984,846.32, 2,977,447.08 and 770,394.51 is: 1,155,660.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984,846.32 : 2,977,447.08 = 770,394.51 : x
  2. Step 2: Convert to fraction form
    1,984,846.32/2,977,447.08 = 770,394.51/x
  3. Step 3: Cross multiply
    1,984,846.32x = 2,977,447.08 × 770,394.51
  4. Step 4: Simplify right side
    1,984,846.32x = 2,293,808,884,247.53
  5. Step 5: Solve for x
    x = 2,293,808,884,247.53/1,984,846.32
  6. Step 6: Final answer
    x = 1,155,660.70

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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.