Home / 672,728.55-1,007,950.92-405,928.45

Finding the Fourth Proportional to 672,728.55, 1,007,950.92 and 405,928.45

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Solution

The fourth proportional to 672,728.55, 1,007,950.92 and 405,928.45 is: 608,203.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,728.55 : 1,007,950.92 = 405,928.45 : x
  2. Step 2: Convert to fraction form
    672,728.55/1,007,950.92 = 405,928.45/x
  3. Step 3: Cross multiply
    672,728.55x = 1,007,950.92 × 405,928.45
  4. Step 4: Simplify right side
    672,728.55x = 409,155,954,631.67
  5. Step 5: Solve for x
    x = 409,155,954,631.67/672,728.55
  6. Step 6: Final answer
    x = 608,203.64

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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.