Finding the Fourth Proportional to 643,470.36, 888,031.08 and 371,549.70
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Solution
The fourth proportional to 643,470.36, 888,031.08 and 371,549.70 is: 512,762.83
Step by Step Solution
- Step 1: Write the proportion equation
643,470.36 : 888,031.08 = 371,549.70 : x - Step 2: Convert to fraction form
643,470.36/888,031.08 = 371,549.70/x - Step 3: Cross multiply
643,470.36x = 888,031.08 × 371,549.70 - Step 4: Simplify right side
643,470.36x = 329,947,681,364.68 - Step 5: Solve for x
x = 329,947,681,364.68/643,470.36 - Step 6: Final answer
x = 512,762.83
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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.