Home / 421,731.56-581,804.70-247,213.32

Finding the Fourth Proportional to 421,731.56, 581,804.70 and 247,213.32

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Solution

The fourth proportional to 421,731.56, 581,804.70 and 247,213.32 is: 341,046.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,731.56 : 581,804.70 = 247,213.32 : x
  2. Step 2: Convert to fraction form
    421,731.56/581,804.70 = 247,213.32/x
  3. Step 3: Cross multiply
    421,731.56x = 581,804.70 × 247,213.32
  4. Step 4: Simplify right side
    421,731.56x = 143,829,871,478.60
  5. Step 5: Solve for x
    x = 143,829,871,478.60/421,731.56
  6. Step 6: Final answer
    x = 341,046.03

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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.