Finding the Fourth Proportional to 598,916.20, 898,374.30 and 430,079.80
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Solution
The fourth proportional to 598,916.20, 898,374.30 and 430,079.80 is: 645,119.70
Step by Step Solution
- Step 1: Write the proportion equation
598,916.20 : 898,374.30 = 430,079.80 : x - Step 2: Convert to fraction form
598,916.20/898,374.30 = 430,079.80/x - Step 3: Cross multiply
598,916.20x = 898,374.30 × 430,079.80 - Step 4: Simplify right side
598,916.20x = 386,372,639,269.14 - Step 5: Solve for x
x = 386,372,639,269.14/598,916.20 - Step 6: Final answer
x = 645,119.70
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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.