Finding the Fourth Proportional to 541,989.54, 812,691.09 and 430,387.74
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Solution
The fourth proportional to 541,989.54, 812,691.09 and 430,387.74 is: 645,348.77
Step by Step Solution
- Step 1: Write the proportion equation
541,989.54 : 812,691.09 = 430,387.74 : x - Step 2: Convert to fraction form
541,989.54/812,691.09 = 430,387.74/x - Step 3: Cross multiply
541,989.54x = 812,691.09 × 430,387.74 - Step 4: Simplify right side
541,989.54x = 349,772,281,543.24 - Step 5: Solve for x
x = 349,772,281,543.24/541,989.54 - Step 6: Final answer
x = 645,348.77
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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.