Finding the Fourth Proportional to 665,802.68, 918,807.54 and 363,996.68
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Solution
The fourth proportional to 665,802.68, 918,807.54 and 363,996.68 is: 502,315.33
Step by Step Solution
- Step 1: Write the proportion equation
665,802.68 : 918,807.54 = 363,996.68 : x - Step 2: Convert to fraction form
665,802.68/918,807.54 = 363,996.68/x - Step 3: Cross multiply
665,802.68x = 918,807.54 × 363,996.68 - Step 4: Simplify right side
665,802.68x = 334,442,894,118.97 - Step 5: Solve for x
x = 334,442,894,118.97/665,802.68 - Step 6: Final answer
x = 502,315.33
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1.5x scale
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.