Home / 776,439.03-1,163,713.88-415,723.16

Finding the Fourth Proportional to 776,439.03, 1,163,713.88 and 415,723.16

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Solution

The fourth proportional to 776,439.03, 1,163,713.88 and 415,723.16 is: 623,078.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,439.03 : 1,163,713.88 = 415,723.16 : x
  2. Step 2: Convert to fraction form
    776,439.03/1,163,713.88 = 415,723.16/x
  3. Step 3: Cross multiply
    776,439.03x = 1,163,713.88 × 415,723.16
  4. Step 4: Simplify right side
    776,439.03x = 483,782,803,632.28
  5. Step 5: Solve for x
    x = 483,782,803,632.28/776,439.03
  6. Step 6: Final answer
    x = 623,078.93

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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.