Finding the Fourth Proportional to 654, 979.78 and 470.94
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Solution
The fourth proportional to 654, 979.78 and 470.94 is: 705.53
Step by Step Solution
- Step 1: Write the proportion equation
654 : 979.78 = 470.94 : x - Step 2: Convert to fraction form
654/979.78 = 470.94/x - Step 3: Cross multiply
654x = 979.78 × 470.94 - Step 4: Simplify right side
654x = 461,417.59 - Step 5: Solve for x
x = 461,417.59/654 - Step 6: Final answer
x = 705.53
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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.