Home / 380,943.95-571,420.79-262,583.51

Finding the Fourth Proportional to 380,943.95, 571,420.79 and 262,583.51

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Solution

The fourth proportional to 380,943.95, 571,420.79 and 262,583.51 is: 393,878.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,943.95 : 571,420.79 = 262,583.51 : x
  2. Step 2: Convert to fraction form
    380,943.95/571,420.79 = 262,583.51/x
  3. Step 3: Cross multiply
    380,943.95x = 571,420.79 × 262,583.51
  4. Step 4: Simplify right side
    380,943.95x = 150,045,675,412.26
  5. Step 5: Solve for x
    x = 150,045,675,412.26/380,943.95
  6. Step 6: Final answer
    x = 393,878.61

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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.