Home / 743,387.95-1,025,896.41-421,097.97

Finding the Fourth Proportional to 743,387.95, 1,025,896.41 and 421,097.97

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Solution

The fourth proportional to 743,387.95, 1,025,896.41 and 421,097.97 is: 581,127.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,387.95 : 1,025,896.41 = 421,097.97 : x
  2. Step 2: Convert to fraction form
    743,387.95/1,025,896.41 = 421,097.97/x
  3. Step 3: Cross multiply
    743,387.95x = 1,025,896.41 × 421,097.97
  4. Step 4: Simplify right side
    743,387.95x = 432,002,892,056.76
  5. Step 5: Solve for x
    x = 432,002,892,056.76/743,387.95
  6. Step 6: Final answer
    x = 581,127.11

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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.