Finding the Fourth Proportional to 487,751.59, 735,283.19 and 455,238.19
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Solution
The fourth proportional to 487,751.59, 735,283.19 and 455,238.19 is: 686,269.39
Step by Step Solution
- Step 1: Write the proportion equation
487,751.59 : 735,283.19 = 455,238.19 : x - Step 2: Convert to fraction form
487,751.59/735,283.19 = 455,238.19/x - Step 3: Cross multiply
487,751.59x = 735,283.19 × 455,238.19 - Step 4: Simplify right side
487,751.59x = 334,728,988,553.03 - Step 5: Solve for x
x = 334,728,988,553.03/487,751.59 - Step 6: Final answer
x = 686,269.39
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.