Home / 738,415.86-1,109,624.91-401,705.34

Finding the Fourth Proportional to 738,415.86, 1,109,624.91 and 401,705.34

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Solution

The fourth proportional to 738,415.86, 1,109,624.91 and 401,705.34 is: 603,646.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,415.86 : 1,109,624.91 = 401,705.34 : x
  2. Step 2: Convert to fraction form
    738,415.86/1,109,624.91 = 401,705.34/x
  3. Step 3: Cross multiply
    738,415.86x = 1,109,624.91 × 401,705.34
  4. Step 4: Simplify right side
    738,415.86x = 445,742,251,744.02
  5. Step 5: Solve for x
    x = 445,742,251,744.02/738,415.86
  6. Step 6: Final answer
    x = 603,646.64

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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.