Home / 720,814.80-1,081,319.40-247,645.20

Finding the Fourth Proportional to 720,814.80, 1,081,319.40 and 247,645.20

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Solution

The fourth proportional to 720,814.80, 1,081,319.40 and 247,645.20 is: 371,501.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,814.80 : 1,081,319.40 = 247,645.20 : x
  2. Step 2: Convert to fraction form
    720,814.80/1,081,319.40 = 247,645.20/x
  3. Step 3: Cross multiply
    720,814.80x = 1,081,319.40 × 247,645.20
  4. Step 4: Simplify right side
    720,814.80x = 267,783,559,076.88
  5. Step 5: Solve for x
    x = 267,783,559,076.88/720,814.80
  6. Step 6: Final answer
    x = 371,501.19

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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.