Finding the Fourth Proportional to 963,941.58, 1,329,056.91 and 782,138.70
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Solution
The fourth proportional to 963,941.58, 1,329,056.91 and 782,138.70 is: 1,078,391.95
Step by Step Solution
- Step 1: Write the proportion equation
963,941.58 : 1,329,056.91 = 782,138.70 : x - Step 2: Convert to fraction form
963,941.58/1,329,056.91 = 782,138.70/x - Step 3: Cross multiply
963,941.58x = 1,329,056.91 × 782,138.70 - Step 4: Simplify right side
963,941.58x = 1,039,506,843,813.42 - Step 5: Solve for x
x = 1,039,506,843,813.42/963,941.58 - Step 6: Final answer
x = 1,078,391.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.