Home / 454,668.81-681,805.39-130,385.49

Finding the Fourth Proportional to 454,668.81, 681,805.39 and 130,385.49

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Solution

The fourth proportional to 454,668.81, 681,805.39 and 130,385.49 is: 195,521.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,668.81 : 681,805.39 = 130,385.49 : x
  2. Step 2: Convert to fraction form
    454,668.81/681,805.39 = 130,385.49/x
  3. Step 3: Cross multiply
    454,668.81x = 681,805.39 × 130,385.49
  4. Step 4: Simplify right side
    454,668.81x = 88,897,529,859.79
  5. Step 5: Solve for x
    x = 88,897,529,859.79/454,668.81
  6. Step 6: Final answer
    x = 195,521.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.