Finding the Fourth Proportional to 774,494.13, 1,068,798.40 and 430,386.09
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Solution
The fourth proportional to 774,494.13, 1,068,798.40 and 430,386.09 is: 593,930.86
Step by Step Solution
- Step 1: Write the proportion equation
774,494.13 : 1,068,798.40 = 430,386.09 : x - Step 2: Convert to fraction form
774,494.13/1,068,798.40 = 430,386.09/x - Step 3: Cross multiply
774,494.13x = 1,068,798.40 × 430,386.09 - Step 4: Simplify right side
774,494.13x = 459,995,964,374.26 - Step 5: Solve for x
x = 459,995,964,374.26/774,494.13 - Step 6: Final answer
x = 593,930.86
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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.