Finding the Fourth Proportional to 2,989,660.30, 4,484,490.45 and 2,788,893.70
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Solution
The fourth proportional to 2,989,660.30, 4,484,490.45 and 2,788,893.70 is: 4,183,340.55
Step by Step Solution
- Step 1: Write the proportion equation
2,989,660.30 : 4,484,490.45 = 2,788,893.70 : x - Step 2: Convert to fraction form
2,989,660.30/4,484,490.45 = 2,788,893.70/x - Step 3: Cross multiply
2,989,660.30x = 4,484,490.45 × 2,788,893.70 - Step 4: Simplify right side
2,989,660.30x = 12,506,767,163,715.17 - Step 5: Solve for x
x = 12,506,767,163,715.17/2,989,660.30 - Step 6: Final answer
x = 4,183,340.55
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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.