Finding the Fourth Proportional to 615,988.79, 850,055.48 and 344,060.66
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Solution
The fourth proportional to 615,988.79, 850,055.48 and 344,060.66 is: 474,798.65
Step by Step Solution
- Step 1: Write the proportion equation
615,988.79 : 850,055.48 = 344,060.66 : x - Step 2: Convert to fraction form
615,988.79/850,055.48 = 344,060.66/x - Step 3: Cross multiply
615,988.79x = 850,055.48 × 344,060.66 - Step 4: Simplify right side
615,988.79x = 292,470,646,095.29 - Step 5: Solve for x
x = 292,470,646,095.29/615,988.79 - Step 6: Final answer
x = 474,798.65
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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.