Home / 648,574.81-972,185.15-221,984.98

Finding the Fourth Proportional to 648,574.81, 972,185.15 and 221,984.98

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Solution

The fourth proportional to 648,574.81, 972,185.15 and 221,984.98 is: 332,745.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,574.81 : 972,185.15 = 221,984.98 : x
  2. Step 2: Convert to fraction form
    648,574.81/972,185.15 = 221,984.98/x
  3. Step 3: Cross multiply
    648,574.81x = 972,185.15 × 221,984.98
  4. Step 4: Simplify right side
    648,574.81x = 215,810,499,969.12
  5. Step 5: Solve for x
    x = 215,810,499,969.12/648,574.81
  6. Step 6: Final answer
    x = 332,745.73

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1.5x scale

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.