Finding the Fourth Proportional to 528,654.57, 729,523.74 and 286,931.94
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Solution
The fourth proportional to 528,654.57, 729,523.74 and 286,931.94 is: 395,955.46
Step by Step Solution
- Step 1: Write the proportion equation
528,654.57 : 729,523.74 = 286,931.94 : x - Step 2: Convert to fraction form
528,654.57/729,523.74 = 286,931.94/x - Step 3: Cross multiply
528,654.57x = 729,523.74 × 286,931.94 - Step 4: Simplify right side
528,654.57x = 209,323,661,994.26 - Step 5: Solve for x
x = 209,323,661,994.26/528,654.57 - Step 6: Final answer
x = 395,955.46
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.