Home / 1,578,723.28-2,178,605.64-863,331.28

Finding the Fourth Proportional to 1,578,723.28, 2,178,605.64 and 863,331.28

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Solution

The fourth proportional to 1,578,723.28, 2,178,605.64 and 863,331.28 is: 1,191,379.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,723.28 : 2,178,605.64 = 863,331.28 : x
  2. Step 2: Convert to fraction form
    1,578,723.28/2,178,605.64 = 863,331.28/x
  3. Step 3: Cross multiply
    1,578,723.28x = 2,178,605.64 × 863,331.28
  4. Step 4: Simplify right side
    1,578,723.28x = 1,880,858,395,796.42
  5. Step 5: Solve for x
    x = 1,880,858,395,796.42/1,578,723.28
  6. Step 6: Final answer
    x = 1,191,379.40

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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.