Home / 421,739.64-581,999.76-230,752.62

Finding the Fourth Proportional to 421,739.64, 581,999.76 and 230,752.62

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Solution

The fourth proportional to 421,739.64, 581,999.76 and 230,752.62 is: 318,438.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,739.64 : 581,999.76 = 230,752.62 : x
  2. Step 2: Convert to fraction form
    421,739.64/581,999.76 = 230,752.62/x
  3. Step 3: Cross multiply
    421,739.64x = 581,999.76 × 230,752.62
  4. Step 4: Simplify right side
    421,739.64x = 134,297,969,459.37
  5. Step 5: Solve for x
    x = 134,297,969,459.37/421,739.64
  6. Step 6: Final answer
    x = 318,438.10

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1.5x scale

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.