Finding the Fourth Proportional to 397,312.70, 595,969.05 and 390,751.70
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Solution
The fourth proportional to 397,312.70, 595,969.05 and 390,751.70 is: 586,127.55
Step by Step Solution
- Step 1: Write the proportion equation
397,312.70 : 595,969.05 = 390,751.70 : x - Step 2: Convert to fraction form
397,312.70/595,969.05 = 390,751.70/x - Step 3: Cross multiply
397,312.70x = 595,969.05 × 390,751.70 - Step 4: Simplify right side
397,312.70x = 232,875,919,434.89 - Step 5: Solve for x
x = 232,875,919,434.89/397,312.70 - Step 6: Final answer
x = 586,127.55
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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.