Finding the Fourth Proportional to 439,718.60, 657,609.60 and 368,859.80
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Solution
The fourth proportional to 439,718.60, 657,609.60 and 368,859.80 is: 551,638.58
Step by Step Solution
- Step 1: Write the proportion equation
439,718.60 : 657,609.60 = 368,859.80 : x - Step 2: Convert to fraction form
439,718.60/657,609.60 = 368,859.80/x - Step 3: Cross multiply
439,718.60x = 657,609.60 × 368,859.80 - Step 4: Simplify right side
439,718.60x = 242,565,745,534.08 - Step 5: Solve for x
x = 242,565,745,534.08/439,718.60 - Step 6: Final answer
x = 551,638.58
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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.