Home / 807,005.90-1,210,677.23-427,823.67

Finding the Fourth Proportional to 807,005.90, 1,210,677.23 and 427,823.67

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Solution

The fourth proportional to 807,005.90, 1,210,677.23 and 427,823.67 is: 641,824.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,005.90 : 1,210,677.23 = 427,823.67 : x
  2. Step 2: Convert to fraction form
    807,005.90/1,210,677.23 = 427,823.67/x
  3. Step 3: Cross multiply
    807,005.90x = 1,210,677.23 × 427,823.67
  4. Step 4: Simplify right side
    807,005.90x = 517,956,375,724.03
  5. Step 5: Solve for x
    x = 517,956,375,724.03/807,005.90
  6. Step 6: Final answer
    x = 641,824.77

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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.