Home / 421,040.20-581,292.90-274,005.16

Finding the Fourth Proportional to 421,040.20, 581,292.90 and 274,005.16

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Solution

The fourth proportional to 421,040.20, 581,292.90 and 274,005.16 is: 378,294.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,040.20 : 581,292.90 = 274,005.16 : x
  2. Step 2: Convert to fraction form
    421,040.20/581,292.90 = 274,005.16/x
  3. Step 3: Cross multiply
    421,040.20x = 581,292.90 × 274,005.16
  4. Step 4: Simplify right side
    421,040.20x = 159,277,254,071.36
  5. Step 5: Solve for x
    x = 159,277,254,071.36/421,040.20
  6. Step 6: Final answer
    x = 378,294.65

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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.