Home / 379,609.04-523,835.51-218,438.07

Finding the Fourth Proportional to 379,609.04, 523,835.51 and 218,438.07

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Solution

The fourth proportional to 379,609.04, 523,835.51 and 218,438.07 is: 301,430.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,609.04 : 523,835.51 = 218,438.07 : x
  2. Step 2: Convert to fraction form
    379,609.04/523,835.51 = 218,438.07/x
  3. Step 3: Cross multiply
    379,609.04x = 523,835.51 × 218,438.07
  4. Step 4: Simplify right side
    379,609.04x = 114,425,616,709.68
  5. Step 5: Solve for x
    x = 114,425,616,709.68/379,609.04
  6. Step 6: Final answer
    x = 301,430.17

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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.