Finding the Fourth Proportional to 1,690,135.30, 2,535,368.55 and 492,069.70
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Solution
The fourth proportional to 1,690,135.30, 2,535,368.55 and 492,069.70 is: 738,152.76
Step by Step Solution
- Step 1: Write the proportion equation
1,690,135.30 : 2,535,368.55 = 492,069.70 : x - Step 2: Convert to fraction form
1,690,135.30/2,535,368.55 = 492,069.70/x - Step 3: Cross multiply
1,690,135.30x = 2,535,368.55 × 492,069.70 - Step 4: Simplify right side
1,690,135.30x = 1,247,578,041,787.94 - Step 5: Solve for x
x = 1,247,578,041,787.94/1,690,135.30 - Step 6: Final answer
x = 738,152.76
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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.