Home / 1,186,231.23-1,778,978.90-427,974.13

Finding the Fourth Proportional to 1,186,231.23, 1,778,978.90 and 427,974.13

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Solution

The fourth proportional to 1,186,231.23, 1,778,978.90 and 427,974.13 is: 641,828.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,231.23 : 1,778,978.90 = 427,974.13 : x
  2. Step 2: Convert to fraction form
    1,186,231.23/1,778,978.90 = 427,974.13/x
  3. Step 3: Cross multiply
    1,186,231.23x = 1,778,978.90 × 427,974.13
  4. Step 4: Simplify right side
    1,186,231.23x = 761,356,950,309.52
  5. Step 5: Solve for x
    x = 761,356,950,309.52/1,186,231.23
  6. Step 6: Final answer
    x = 641,828.45

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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.