Finding the Fourth Proportional to 664,248.48, 916,683.16 and 377,809.84
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Solution
The fourth proportional to 664,248.48, 916,683.16 and 377,809.84 is: 521,389.10
Step by Step Solution
- Step 1: Write the proportion equation
664,248.48 : 916,683.16 = 377,809.84 : x - Step 2: Convert to fraction form
664,248.48/916,683.16 = 377,809.84/x - Step 3: Cross multiply
664,248.48x = 916,683.16 × 377,809.84 - Step 4: Simplify right side
664,248.48x = 346,331,918,010.29 - Step 5: Solve for x
x = 346,331,918,010.29/664,248.48 - Step 6: Final answer
x = 521,389.10
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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.