Home / 771,776.28-1,065,089.25-465,847.79

Finding the Fourth Proportional to 771,776.28, 1,065,089.25 and 465,847.79

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Solution

The fourth proportional to 771,776.28, 1,065,089.25 and 465,847.79 is: 642,892.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,776.28 : 1,065,089.25 = 465,847.79 : x
  2. Step 2: Convert to fraction form
    771,776.28/1,065,089.25 = 465,847.79/x
  3. Step 3: Cross multiply
    771,776.28x = 1,065,089.25 × 465,847.79
  4. Step 4: Simplify right side
    771,776.28x = 496,169,467,939.81
  5. Step 5: Solve for x
    x = 496,169,467,939.81/771,776.28
  6. Step 6: Final answer
    x = 642,892.87

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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.