Finding the Fourth Proportional to 648,214.30, 894,428.75 and 361,733.70
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Solution
The fourth proportional to 648,214.30, 894,428.75 and 361,733.70 is: 499,132.80
Step by Step Solution
- Step 1: Write the proportion equation
648,214.30 : 894,428.75 = 361,733.70 : x - Step 2: Convert to fraction form
648,214.30/894,428.75 = 361,733.70/x - Step 3: Cross multiply
648,214.30x = 894,428.75 × 361,733.70 - Step 4: Simplify right side
648,214.30x = 323,545,021,123.88 - Step 5: Solve for x
x = 323,545,021,123.88/648,214.30 - Step 6: Final answer
x = 499,132.80
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1.5x scale
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.