Home / 483,255.36-666,853.38-279,319.50

Finding the Fourth Proportional to 483,255.36, 666,853.38 and 279,319.50

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Solution

The fourth proportional to 483,255.36, 666,853.38 and 279,319.50 is: 385,438.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,255.36 : 666,853.38 = 279,319.50 : x
  2. Step 2: Convert to fraction form
    483,255.36/666,853.38 = 279,319.50/x
  3. Step 3: Cross multiply
    483,255.36x = 666,853.38 × 279,319.50
  4. Step 4: Simplify right side
    483,255.36x = 186,265,152,674.91
  5. Step 5: Solve for x
    x = 186,265,152,674.91/483,255.36
  6. Step 6: Final answer
    x = 385,438.36

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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.