Finding the Fourth Proportional to 969,780.24, 1,338,309.84 and 540,071.19
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Solution
The fourth proportional to 969,780.24, 1,338,309.84 and 540,071.19 is: 745,305.54
Step by Step Solution
- Step 1: Write the proportion equation
969,780.24 : 1,338,309.84 = 540,071.19 : x - Step 2: Convert to fraction form
969,780.24/1,338,309.84 = 540,071.19/x - Step 3: Cross multiply
969,780.24x = 1,338,309.84 × 540,071.19 - Step 4: Simplify right side
969,780.24x = 722,782,587,877.51 - Step 5: Solve for x
x = 722,782,587,877.51/969,780.24 - Step 6: Final answer
x = 745,305.54
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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.