Finding the Fourth Proportional to 1,729,307.91, 2,369,140.80 and 1,664,639.73
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Solution
The fourth proportional to 1,729,307.91, 2,369,140.80 and 1,664,639.73 is: 2,280,545.81
Step by Step Solution
- Step 1: Write the proportion equation
1,729,307.91 : 2,369,140.80 = 1,664,639.73 : x - Step 2: Convert to fraction form
1,729,307.91/2,369,140.80 = 1,664,639.73/x - Step 3: Cross multiply
1,729,307.91x = 2,369,140.80 × 1,664,639.73 - Step 4: Simplify right side
1,729,307.91x = 3,943,765,901,643.98 - Step 5: Solve for x
x = 3,943,765,901,643.98/1,729,307.91 - Step 6: Final answer
x = 2,280,545.81
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.