Finding the Fourth Proportional to 479,396.97, 661,330.85 and 313,726.86
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Solution
The fourth proportional to 479,396.97, 661,330.85 and 313,726.86 is: 432,787.99
Step by Step Solution
- Step 1: Write the proportion equation
479,396.97 : 661,330.85 = 313,726.86 : x - Step 2: Convert to fraction form
479,396.97/661,330.85 = 313,726.86/x - Step 3: Cross multiply
479,396.97x = 661,330.85 × 313,726.86 - Step 4: Simplify right side
479,396.97x = 207,477,249,423.00 - Step 5: Solve for x
x = 207,477,249,423.00/479,396.97 - Step 6: Final answer
x = 432,787.99
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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.