Home / 484,333.70-668,370.07-280,393.25

Finding the Fourth Proportional to 484,333.70, 668,370.07 and 280,393.25

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Solution

The fourth proportional to 484,333.70, 668,370.07 and 280,393.25 is: 386,936.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,333.70 : 668,370.07 = 280,393.25 : x
  2. Step 2: Convert to fraction form
    484,333.70/668,370.07 = 280,393.25/x
  3. Step 3: Cross multiply
    484,333.70x = 668,370.07 × 280,393.25
  4. Step 4: Simplify right side
    484,333.70x = 187,406,456,130.03
  5. Step 5: Solve for x
    x = 187,406,456,130.03/484,333.70
  6. Step 6: Final answer
    x = 386,936.64

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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.