Finding the Fourth Proportional to 487,747.09, 735,276.40 and 455,233.69
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Solution
The fourth proportional to 487,747.09, 735,276.40 and 455,233.69 is: 686,262.61
Step by Step Solution
- Step 1: Write the proportion equation
487,747.09 : 735,276.40 = 455,233.69 : x - Step 2: Convert to fraction form
487,747.09/735,276.40 = 455,233.69/x - Step 3: Cross multiply
487,747.09x = 735,276.40 × 455,233.69 - Step 4: Simplify right side
487,747.09x = 334,722,588,741.92 - Step 5: Solve for x
x = 334,722,588,741.92/487,747.09 - Step 6: Final answer
x = 686,262.61
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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.