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Finding the Fourth Proportional to 660,072.99, 989,950.95 and 304,745.61

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Solution

The fourth proportional to 660,072.99, 989,950.95 and 304,745.61 is: 457,045.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,072.99 : 989,950.95 = 304,745.61 : x
  2. Step 2: Convert to fraction form
    660,072.99/989,950.95 = 304,745.61/x
  3. Step 3: Cross multiply
    660,072.99x = 989,950.95 × 304,745.61
  4. Step 4: Simplify right side
    660,072.99x = 301,683,206,127.83
  5. Step 5: Solve for x
    x = 301,683,206,127.83/660,072.99
  6. Step 6: Final answer
    x = 457,045.22

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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.