Finding the Fourth Proportional to 677,219.84, 934,592.80 and 405,235.68
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Solution
The fourth proportional to 677,219.84, 934,592.80 and 405,235.68 is: 559,242.84
Step by Step Solution
- Step 1: Write the proportion equation
677,219.84 : 934,592.80 = 405,235.68 : x - Step 2: Convert to fraction form
677,219.84/934,592.80 = 405,235.68/x - Step 3: Cross multiply
677,219.84x = 934,592.80 × 405,235.68 - Step 4: Simplify right side
677,219.84x = 378,730,348,831.10 - Step 5: Solve for x
x = 378,730,348,831.10/677,219.84 - Step 6: Final answer
x = 559,242.84
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1.5x scale
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.