Home / 659,720.46-989,741.88-210,441.41

Finding the Fourth Proportional to 659,720.46, 989,741.88 and 210,441.41

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Solution

The fourth proportional to 659,720.46, 989,741.88 and 210,441.41 is: 315,713.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,720.46 : 989,741.88 = 210,441.41 : x
  2. Step 2: Convert to fraction form
    659,720.46/989,741.88 = 210,441.41/x
  3. Step 3: Cross multiply
    659,720.46x = 989,741.88 × 210,441.41
  4. Step 4: Simplify right side
    659,720.46x = 208,282,671,814.54
  5. Step 5: Solve for x
    x = 208,282,671,814.54/659,720.46
  6. Step 6: Final answer
    x = 315,713.52

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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.