Home / 421,465.49-581,622.05-230,478.83

Finding the Fourth Proportional to 421,465.49, 581,622.05 and 230,478.83

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Solution

The fourth proportional to 421,465.49, 581,622.05 and 230,478.83 is: 318,060.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,465.49 : 581,622.05 = 230,478.83 : x
  2. Step 2: Convert to fraction form
    421,465.49/581,622.05 = 230,478.83/x
  3. Step 3: Cross multiply
    421,465.49x = 581,622.05 × 230,478.83
  4. Step 4: Simplify right side
    421,465.49x = 134,051,569,435.37
  5. Step 5: Solve for x
    x = 134,051,569,435.37/421,465.49
  6. Step 6: Final answer
    x = 318,060.61

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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.