Home / 1,310,206.86-1,808,125.37-713,513.73

Finding the Fourth Proportional to 1,310,206.86, 1,808,125.37 and 713,513.73

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Solution

The fourth proportional to 1,310,206.86, 1,808,125.37 and 713,513.73 is: 984,670.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,206.86 : 1,808,125.37 = 713,513.73 : x
  2. Step 2: Convert to fraction form
    1,310,206.86/1,808,125.37 = 713,513.73/x
  3. Step 3: Cross multiply
    1,310,206.86x = 1,808,125.37 × 713,513.73
  4. Step 4: Simplify right side
    1,310,206.86x = 1,290,122,272,774.20
  5. Step 5: Solve for x
    x = 1,290,122,272,774.20/1,310,206.86
  6. Step 6: Final answer
    x = 984,670.67

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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.