Finding the Fourth Proportional to 719,358.42, 992,714.68 and 397,068.60
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Solution
The fourth proportional to 719,358.42, 992,714.68 and 397,068.60 is: 547,954.70
Step by Step Solution
- Step 1: Write the proportion equation
719,358.42 : 992,714.68 = 397,068.60 : x - Step 2: Convert to fraction form
719,358.42/992,714.68 = 397,068.60/x - Step 3: Cross multiply
719,358.42x = 992,714.68 × 397,068.60 - Step 4: Simplify right side
719,358.42x = 394,175,828,187.05 - Step 5: Solve for x
x = 394,175,828,187.05/719,358.42 - Step 6: Final answer
x = 547,954.70
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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.