Finding the Fourth Proportional to 625,988.17, 863,730.71 and 371,422.09
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Solution
The fourth proportional to 625,988.17, 863,730.71 and 371,422.09 is: 512,483.59
Step by Step Solution
- Step 1: Write the proportion equation
625,988.17 : 863,730.71 = 371,422.09 : x - Step 2: Convert to fraction form
625,988.17/863,730.71 = 371,422.09/x - Step 3: Cross multiply
625,988.17x = 863,730.71 × 371,422.09 - Step 4: Simplify right side
625,988.17x = 320,808,663,648.27 - Step 5: Solve for x
x = 320,808,663,648.27/625,988.17 - Step 6: Final answer
x = 512,483.59
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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.