Home / 405,928.04-560,456.34-253,027.40

Finding the Fourth Proportional to 405,928.04, 560,456.34 and 253,027.40

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Solution

The fourth proportional to 405,928.04, 560,456.34 and 253,027.40 is: 349,349.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,928.04 : 560,456.34 = 253,027.40 : x
  2. Step 2: Convert to fraction form
    405,928.04/560,456.34 = 253,027.40/x
  3. Step 3: Cross multiply
    405,928.04x = 560,456.34 × 253,027.40
  4. Step 4: Simplify right side
    405,928.04x = 141,810,810,523.72
  5. Step 5: Solve for x
    x = 141,810,810,523.72/405,928.04
  6. Step 6: Final answer
    x = 349,349.63

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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.