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Finding the Fourth Proportional to 548,254.77, 756,362.30 and 427,185.82

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Solution

The fourth proportional to 548,254.77, 756,362.30 and 427,185.82 is: 589,337.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,254.77 : 756,362.30 = 427,185.82 : x
  2. Step 2: Convert to fraction form
    548,254.77/756,362.30 = 427,185.82/x
  3. Step 3: Cross multiply
    548,254.77x = 756,362.30 × 427,185.82
  4. Step 4: Simplify right side
    548,254.77x = 323,107,249,342.59
  5. Step 5: Solve for x
    x = 323,107,249,342.59/548,254.77
  6. Step 6: Final answer
    x = 589,337.78

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1.5x scale

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.