Finding the Fourth Proportional to 977,439.10, 1,466,413.80 and 378,419.80
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Solution
The fourth proportional to 977,439.10, 1,466,413.80 and 378,419.80 is: 567,728.48
Step by Step Solution
- Step 1: Write the proportion equation
977,439.10 : 1,466,413.80 = 378,419.80 : x - Step 2: Convert to fraction form
977,439.10/1,466,413.80 = 378,419.80/x - Step 3: Cross multiply
977,439.10x = 1,466,413.80 × 378,419.80 - Step 4: Simplify right side
977,439.10x = 554,920,016,913.24 - Step 5: Solve for x
x = 554,920,016,913.24/977,439.10 - Step 6: Final answer
x = 567,728.48
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1.5x scale
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.