Finding the Fourth Proportional to 665,931.36, 918,988.32 and 364,125.12
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Solution
The fourth proportional to 665,931.36, 918,988.32 and 364,125.12 is: 502,494.33
Step by Step Solution
- Step 1: Write the proportion equation
665,931.36 : 918,988.32 = 364,125.12 : x - Step 2: Convert to fraction form
665,931.36/918,988.32 = 364,125.12/x - Step 3: Cross multiply
665,931.36x = 918,988.32 × 364,125.12 - Step 4: Simplify right side
665,931.36x = 334,626,732,298.60 - Step 5: Solve for x
x = 334,626,732,298.60/665,931.36 - Step 6: Final answer
x = 502,494.33
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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.