Home / 405,125.51-558,599-276,140.35

Finding the Fourth Proportional to 405,125.51, 558,599 and 276,140.35

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Solution

The fourth proportional to 405,125.51, 558,599 and 276,140.35 is: 380,750.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,125.51 : 558,599 = 276,140.35 : x
  2. Step 2: Convert to fraction form
    405,125.51/558,599 = 276,140.35/x
  3. Step 3: Cross multiply
    405,125.51x = 558,599 × 276,140.35
  4. Step 4: Simplify right side
    405,125.51x = 154,251,723,369.65
  5. Step 5: Solve for x
    x = 154,251,723,369.65/405,125.51
  6. Step 6: Final answer
    x = 380,750.46

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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.