Finding the Fourth Proportional to 611,965.68, 917,920.49 and 212,637.71
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Solution
The fourth proportional to 611,965.68, 917,920.49 and 212,637.71 is: 318,946.82
Step by Step Solution
- Step 1: Write the proportion equation
611,965.68 : 917,920.49 = 212,637.71 : x - Step 2: Convert to fraction form
611,965.68/917,920.49 = 212,637.71/x - Step 3: Cross multiply
611,965.68x = 917,920.49 × 212,637.71 - Step 4: Simplify right side
611,965.68x = 195,184,505,302.89 - Step 5: Solve for x
x = 195,184,505,302.89/611,965.68 - Step 6: Final answer
x = 318,946.82
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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.