Finding the Fourth Proportional to 486,177.54, 670,962.18 and 268,428.21
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Solution
The fourth proportional to 486,177.54, 670,962.18 and 268,428.21 is: 370,451.45
Step by Step Solution
- Step 1: Write the proportion equation
486,177.54 : 670,962.18 = 268,428.21 : x - Step 2: Convert to fraction form
486,177.54/670,962.18 = 268,428.21/x - Step 3: Cross multiply
486,177.54x = 670,962.18 × 268,428.21 - Step 4: Simplify right side
486,177.54x = 180,105,176,955.10 - Step 5: Solve for x
x = 180,105,176,955.10/486,177.54 - Step 6: Final answer
x = 370,451.45
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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.