Finding the Fourth Proportional to 747,128.67, 1,031,032.68 and 424,838.79
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Solution
The fourth proportional to 747,128.67, 1,031,032.68 and 424,838.79 is: 586,274.75
Step by Step Solution
- Step 1: Write the proportion equation
747,128.67 : 1,031,032.68 = 424,838.79 : x - Step 2: Convert to fraction form
747,128.67/1,031,032.68 = 424,838.79/x - Step 3: Cross multiply
747,128.67x = 1,031,032.68 × 424,838.79 - Step 4: Simplify right side
747,128.67x = 438,022,676,221.66 - Step 5: Solve for x
x = 438,022,676,221.66/747,128.67 - Step 6: Final answer
x = 586,274.75
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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.