Finding the Fourth Proportional to 527,742.66, 728,281.99 and 286,022.66
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Solution
The fourth proportional to 527,742.66, 728,281.99 and 286,022.66 is: 394,709.71
Step by Step Solution
- Step 1: Write the proportion equation
527,742.66 : 728,281.99 = 286,022.66 : x - Step 2: Convert to fraction form
527,742.66/728,281.99 = 286,022.66/x - Step 3: Cross multiply
527,742.66x = 728,281.99 × 286,022.66 - Step 4: Simplify right side
527,742.66x = 208,305,154,188.13 - Step 5: Solve for x
x = 208,305,154,188.13/527,742.66 - Step 6: Final answer
x = 394,709.71
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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.