Home / 412,511.07-618,943.06-172,681.01

Finding the Fourth Proportional to 412,511.07, 618,943.06 and 172,681.01

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Solution

The fourth proportional to 412,511.07, 618,943.06 and 172,681.01 is: 259,095.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,511.07 : 618,943.06 = 172,681.01 : x
  2. Step 2: Convert to fraction form
    412,511.07/618,943.06 = 172,681.01/x
  3. Step 3: Cross multiply
    412,511.07x = 618,943.06 × 172,681.01
  4. Step 4: Simplify right side
    412,511.07x = 106,879,713,848.95
  5. Step 5: Solve for x
    x = 106,879,713,848.95/412,511.07
  6. Step 6: Final answer
    x = 259,095.38

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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.