Finding the Fourth Proportional to 551,619.64, 761,323.64 and 515,599.68
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Solution
The fourth proportional to 551,619.64, 761,323.64 and 515,599.68 is: 711,610.31
Step by Step Solution
- Step 1: Write the proportion equation
551,619.64 : 761,323.64 = 515,599.68 : x - Step 2: Convert to fraction form
551,619.64/761,323.64 = 515,599.68/x - Step 3: Cross multiply
551,619.64x = 761,323.64 × 515,599.68 - Step 4: Simplify right side
551,619.64x = 392,538,225,160.44 - Step 5: Solve for x
x = 392,538,225,160.44/551,619.64 - Step 6: Final answer
x = 711,610.31
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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.