Finding the Fourth Proportional to 680,725.13, 939,691.35 and 484,618.19
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Solution
The fourth proportional to 680,725.13, 939,691.35 and 484,618.19 is: 668,980.03
Step by Step Solution
- Step 1: Write the proportion equation
680,725.13 : 939,691.35 = 484,618.19 : x - Step 2: Convert to fraction form
680,725.13/939,691.35 = 484,618.19/x - Step 3: Cross multiply
680,725.13x = 939,691.35 × 484,618.19 - Step 4: Simplify right side
680,725.13x = 455,391,516,497.20 - Step 5: Solve for x
x = 455,391,516,497.20/680,725.13 - Step 6: Final answer
x = 668,980.03
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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.