Home / 745,164.50-1,028,327.13-405,635.30

Finding the Fourth Proportional to 745,164.50, 1,028,327.13 and 405,635.30

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Solution

The fourth proportional to 745,164.50, 1,028,327.13 and 405,635.30 is: 559,776.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,164.50 : 1,028,327.13 = 405,635.30 : x
  2. Step 2: Convert to fraction form
    745,164.50/1,028,327.13 = 405,635.30/x
  3. Step 3: Cross multiply
    745,164.50x = 1,028,327.13 × 405,635.30
  4. Step 4: Simplify right side
    745,164.50x = 417,125,783,875.69
  5. Step 5: Solve for x
    x = 417,125,783,875.69/745,164.50
  6. Step 6: Final answer
    x = 559,776.78

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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.