Finding the Fourth Proportional to 486,495.97, 729,746.55 and 319,076.49
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Solution
The fourth proportional to 486,495.97, 729,746.55 and 319,076.49 is: 478,616.45
Step by Step Solution
- Step 1: Write the proportion equation
486,495.97 : 729,746.55 = 319,076.49 : x - Step 2: Convert to fraction form
486,495.97/729,746.55 = 319,076.49/x - Step 3: Cross multiply
486,495.97x = 729,746.55 × 319,076.49 - Step 4: Simplify right side
486,495.97x = 232,844,970,500.16 - Step 5: Solve for x
x = 232,844,970,500.16/486,495.97 - Step 6: Final answer
x = 478,616.45
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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.