Finding the Fourth Proportional to 519,631.08, 716,779.08 and 315,578.28
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Solution
The fourth proportional to 519,631.08, 716,779.08 and 315,578.28 is: 435,308.66
Step by Step Solution
- Step 1: Write the proportion equation
519,631.08 : 716,779.08 = 315,578.28 : x - Step 2: Convert to fraction form
519,631.08/716,779.08 = 315,578.28/x - Step 3: Cross multiply
519,631.08x = 716,779.08 × 315,578.28 - Step 4: Simplify right side
519,631.08x = 226,199,909,206.38 - Step 5: Solve for x
x = 226,199,909,206.38/519,631.08 - Step 6: Final answer
x = 435,308.66
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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.