Finding the Fourth Proportional to 976,424.56, 1,346,924.64 and 686,479.84
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Solution
The fourth proportional to 976,424.56, 1,346,924.64 and 686,479.84 is: 946,961.65
Step by Step Solution
- Step 1: Write the proportion equation
976,424.56 : 1,346,924.64 = 686,479.84 : x - Step 2: Convert to fraction form
976,424.56/1,346,924.64 = 686,479.84/x - Step 3: Cross multiply
976,424.56x = 1,346,924.64 × 686,479.84 - Step 4: Simplify right side
976,424.56x = 924,636,611,359.26 - Step 5: Solve for x
x = 924,636,611,359.26/976,424.56 - Step 6: Final answer
x = 946,961.65
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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.