Finding the Fourth Proportional to 519,423.60, 779,135.40 and 297,625.20
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Solution
The fourth proportional to 519,423.60, 779,135.40 and 297,625.20 is: 446,437.80
Step by Step Solution
- Step 1: Write the proportion equation
519,423.60 : 779,135.40 = 297,625.20 : x - Step 2: Convert to fraction form
519,423.60/779,135.40 = 297,625.20/x - Step 3: Cross multiply
519,423.60x = 779,135.40 × 297,625.20 - Step 4: Simplify right side
519,423.60x = 231,890,329,252.08 - Step 5: Solve for x
x = 231,890,329,252.08/519,423.60 - Step 6: Final answer
x = 446,437.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.