Finding the Fourth Proportional to 545,449.74, 752,335.01 and 472,721.07
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Solution
The fourth proportional to 545,449.74, 752,335.01 and 472,721.07 is: 652,020.86
Step by Step Solution
- Step 1: Write the proportion equation
545,449.74 : 752,335.01 = 472,721.07 : x - Step 2: Convert to fraction form
545,449.74/752,335.01 = 472,721.07/x - Step 3: Cross multiply
545,449.74x = 752,335.01 × 472,721.07 - Step 4: Simplify right side
545,449.74x = 355,644,608,562.06 - Step 5: Solve for x
x = 355,644,608,562.06/545,449.74 - Step 6: Final answer
x = 652,020.86
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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.