Finding the Fourth Proportional to 791,407.36, 1,091,656.93 and 646,423.84
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Solution
The fourth proportional to 791,407.36, 1,091,656.93 and 646,423.84 is: 891,668.56
Step by Step Solution
- Step 1: Write the proportion equation
791,407.36 : 1,091,656.93 = 646,423.84 : x - Step 2: Convert to fraction form
791,407.36/1,091,656.93 = 646,423.84/x - Step 3: Cross multiply
791,407.36x = 1,091,656.93 × 646,423.84 - Step 4: Simplify right side
791,407.36x = 705,673,055,962.81 - Step 5: Solve for x
x = 705,673,055,962.81/791,407.36 - Step 6: Final answer
x = 891,668.56
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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.