Finding the Fourth Proportional to 696,157.74, 960,689.94 and 390,283.92
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Solution
The fourth proportional to 696,157.74, 960,689.94 and 390,283.92 is: 538,587.47
Step by Step Solution
- Step 1: Write the proportion equation
696,157.74 : 960,689.94 = 390,283.92 : x - Step 2: Convert to fraction form
696,157.74/960,689.94 = 390,283.92/x - Step 3: Cross multiply
696,157.74x = 960,689.94 × 390,283.92 - Step 4: Simplify right side
696,157.74x = 374,941,835,687.77 - Step 5: Solve for x
x = 374,941,835,687.77/696,157.74 - Step 6: Final answer
x = 538,587.47
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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.