Finding the Fourth Proportional to 553,612.25, 763,984.91 and 298,963.44
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Solution
The fourth proportional to 553,612.25, 763,984.91 and 298,963.44 is: 412,569.55
Step by Step Solution
- Step 1: Write the proportion equation
553,612.25 : 763,984.91 = 298,963.44 : x - Step 2: Convert to fraction form
553,612.25/763,984.91 = 298,963.44/x - Step 3: Cross multiply
553,612.25x = 763,984.91 × 298,963.44 - Step 4: Simplify right side
553,612.25x = 228,403,557,549.10 - Step 5: Solve for x
x = 228,403,557,549.10/553,612.25 - Step 6: Final answer
x = 412,569.55
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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.