Home / 421,023.17-581,269.46-273,988.13

Finding the Fourth Proportional to 421,023.17, 581,269.46 and 273,988.13

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Solution

The fourth proportional to 421,023.17, 581,269.46 and 273,988.13 is: 378,271.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,023.17 : 581,269.46 = 273,988.13 : x
  2. Step 2: Convert to fraction form
    421,023.17/581,269.46 = 273,988.13/x
  3. Step 3: Cross multiply
    421,023.17x = 581,269.46 × 273,988.13
  4. Step 4: Simplify right side
    421,023.17x = 159,260,932,454.74
  5. Step 5: Solve for x
    x = 159,260,932,454.74/421,023.17
  6. Step 6: Final answer
    x = 378,271.18

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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.