Finding the Fourth Proportional to 519,266.10, 778,899.15 and 319,811.70
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Solution
The fourth proportional to 519,266.10, 778,899.15 and 319,811.70 is: 479,717.55
Step by Step Solution
- Step 1: Write the proportion equation
519,266.10 : 778,899.15 = 319,811.70 : x - Step 2: Convert to fraction form
519,266.10/778,899.15 = 319,811.70/x - Step 3: Cross multiply
519,266.10x = 778,899.15 × 319,811.70 - Step 4: Simplify right side
519,266.10x = 249,101,061,290.06 - Step 5: Solve for x
x = 249,101,061,290.06/519,266.10 - Step 6: Final answer
x = 479,717.55
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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.