Finding the Fourth Proportional to 677,390.36, 934,585.98 and 390,872.84
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Solution
The fourth proportional to 677,390.36, 934,585.98 and 390,872.84 is: 539,281.78
Step by Step Solution
- Step 1: Write the proportion equation
677,390.36 : 934,585.98 = 390,872.84 : x - Step 2: Convert to fraction form
677,390.36/934,585.98 = 390,872.84/x - Step 3: Cross multiply
677,390.36x = 934,585.98 × 390,872.84 - Step 4: Simplify right side
677,390.36x = 365,304,276,226.78 - Step 5: Solve for x
x = 365,304,276,226.78/677,390.36 - Step 6: Final answer
x = 539,281.78
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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.