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Finding the Fourth Proportional to 2,784,507.83, 4,176,765.32 and 762,769.51

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Solution

The fourth proportional to 2,784,507.83, 4,176,765.32 and 762,769.51 is: 1,144,155.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784,507.83 : 4,176,765.32 = 762,769.51 : x
  2. Step 2: Convert to fraction form
    2,784,507.83/4,176,765.32 = 762,769.51/x
  3. Step 3: Cross multiply
    2,784,507.83x = 4,176,765.32 × 762,769.51
  4. Step 4: Simplify right side
    2,784,507.83x = 3,185,909,236,521.39
  5. Step 5: Solve for x
    x = 3,185,909,236,521.39/2,784,507.83
  6. Step 6: Final answer
    x = 1,144,155.24

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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.