Finding the Fourth Proportional to 520,564.95, 718,374.63 and 291,119.70
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Solution
The fourth proportional to 520,564.95, 718,374.63 and 291,119.70 is: 401,742.39
Step by Step Solution
- Step 1: Write the proportion equation
520,564.95 : 718,374.63 = 291,119.70 : x - Step 2: Convert to fraction form
520,564.95/718,374.63 = 291,119.70/x - Step 3: Cross multiply
520,564.95x = 718,374.63 × 291,119.70 - Step 4: Simplify right side
520,564.95x = 209,133,006,773.21 - Step 5: Solve for x
x = 209,133,006,773.21/520,564.95 - Step 6: Final answer
x = 401,742.39
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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.