Finding the Fourth Proportional to 519,252.90, 778,879.35 and 318,923.70
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Solution
The fourth proportional to 519,252.90, 778,879.35 and 318,923.70 is: 478,385.55
Step by Step Solution
- Step 1: Write the proportion equation
519,252.90 : 778,879.35 = 318,923.70 : x - Step 2: Convert to fraction form
519,252.90/778,879.35 = 318,923.70/x - Step 3: Cross multiply
519,252.90x = 778,879.35 × 318,923.70 - Step 4: Simplify right side
519,252.90x = 248,403,084,155.60 - Step 5: Solve for x
x = 248,403,084,155.60/519,252.90 - Step 6: Final answer
x = 478,385.55
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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.