Finding the Fourth Proportional to 1,328,658.18, 1,989,990.88 and 617,189.02
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Solution
The fourth proportional to 1,328,658.18, 1,989,990.88 and 617,189.02 is: 924,391.65
Step by Step Solution
- Step 1: Write the proportion equation
1,328,658.18 : 1,989,990.88 = 617,189.02 : x - Step 2: Convert to fraction form
1,328,658.18/1,989,990.88 = 617,189.02/x - Step 3: Cross multiply
1,328,658.18x = 1,989,990.88 × 617,189.02 - Step 4: Simplify right side
1,328,658.18x = 1,228,200,521,036.14 - Step 5: Solve for x
x = 1,228,200,521,036.14/1,328,658.18 - Step 6: Final answer
x = 924,391.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.