Home / 620,890.72-931,341.84-247,009.12

Finding the Fourth Proportional to 620,890.72, 931,341.84 and 247,009.12

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Solution

The fourth proportional to 620,890.72, 931,341.84 and 247,009.12 is: 370,515.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,890.72 : 931,341.84 = 247,009.12 : x
  2. Step 2: Convert to fraction form
    620,890.72/931,341.84 = 247,009.12/x
  3. Step 3: Cross multiply
    620,890.72x = 931,341.84 × 247,009.12
  4. Step 4: Simplify right side
    620,890.72x = 230,049,928,317.58
  5. Step 5: Solve for x
    x = 230,049,928,317.58/620,890.72
  6. Step 6: Final answer
    x = 370,515.97

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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.