Finding the Fourth Proportional to 690,214.14, 952,663.35 and 399,778.92
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Solution
The fourth proportional to 690,214.14, 952,663.35 and 399,778.92 is: 551,792.12
Step by Step Solution
- Step 1: Write the proportion equation
690,214.14 : 952,663.35 = 399,778.92 : x - Step 2: Convert to fraction form
690,214.14/952,663.35 = 399,778.92/x - Step 3: Cross multiply
690,214.14x = 952,663.35 × 399,778.92 - Step 4: Simplify right side
690,214.14x = 380,854,725,186.58 - Step 5: Solve for x
x = 380,854,725,186.58/690,214.14 - Step 6: Final answer
x = 551,792.12
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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.