Finding the Fourth Proportional to 644,081.98, 888,860.92 and 357,602.12
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Solution
The fourth proportional to 644,081.98, 888,860.92 and 357,602.12 is: 493,506.35
Step by Step Solution
- Step 1: Write the proportion equation
644,081.98 : 888,860.92 = 357,602.12 : x - Step 2: Convert to fraction form
644,081.98/888,860.92 = 357,602.12/x - Step 3: Cross multiply
644,081.98x = 888,860.92 × 357,602.12 - Step 4: Simplify right side
644,081.98x = 317,858,549,377.15 - Step 5: Solve for x
x = 317,858,549,377.15/644,081.98 - Step 6: Final answer
x = 493,506.35
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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.