Finding the Fourth Proportional to 891,989.40, 1,336,169.70 and 553,992.60
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Solution
The fourth proportional to 891,989.40, 1,336,169.70 and 553,992.60 is: 829,862.02
Step by Step Solution
- Step 1: Write the proportion equation
891,989.40 : 1,336,169.70 = 553,992.60 : x - Step 2: Convert to fraction form
891,989.40/1,336,169.70 = 553,992.60/x - Step 3: Cross multiply
891,989.40x = 1,336,169.70 × 553,992.60 - Step 4: Simplify right side
891,989.40x = 740,228,126,144.22 - Step 5: Solve for x
x = 740,228,126,144.22/891,989.40 - Step 6: Final answer
x = 829,862.02
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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.