Finding the Fourth Proportional to 657,387.87, 907,201.80 and 385,616.67
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Solution
The fourth proportional to 657,387.87, 907,201.80 and 385,616.67 is: 532,154.84
Step by Step Solution
- Step 1: Write the proportion equation
657,387.87 : 907,201.80 = 385,616.67 : x - Step 2: Convert to fraction form
657,387.87/907,201.80 = 385,616.67/x - Step 3: Cross multiply
657,387.87x = 907,201.80 × 385,616.67 - Step 4: Simplify right side
657,387.87x = 349,832,137,134.01 - Step 5: Solve for x
x = 349,832,137,134.01/657,387.87 - Step 6: Final answer
x = 532,154.84
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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.