Home / 990,063.68-1,366,131.82-576,668.50

Finding the Fourth Proportional to 990,063.68, 1,366,131.82 and 576,668.50

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Solution

The fourth proportional to 990,063.68, 1,366,131.82 and 576,668.50 is: 795,711.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,063.68 : 1,366,131.82 = 576,668.50 : x
  2. Step 2: Convert to fraction form
    990,063.68/1,366,131.82 = 576,668.50/x
  3. Step 3: Cross multiply
    990,063.68x = 1,366,131.82 × 576,668.50
  4. Step 4: Simplify right side
    990,063.68x = 787,805,184,476.89
  5. Step 5: Solve for x
    x = 787,805,184,476.89/990,063.68
  6. Step 6: Final answer
    x = 795,711.63

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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.