Finding the Fourth Proportional to 702,953.10, 1,051,972.05 and 643,970.70
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Solution
The fourth proportional to 702,953.10, 1,051,972.05 and 643,970.70 is: 963,704.66
Step by Step Solution
- Step 1: Write the proportion equation
702,953.10 : 1,051,972.05 = 643,970.70 : x - Step 2: Convert to fraction form
702,953.10/1,051,972.05 = 643,970.70/x - Step 3: Cross multiply
702,953.10x = 1,051,972.05 × 643,970.70 - Step 4: Simplify right side
702,953.10x = 677,439,177,418.94 - Step 5: Solve for x
x = 677,439,177,418.94/702,953.10 - Step 6: Final answer
x = 963,704.66
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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.