Finding the Fourth Proportional to 663,988.01, 916,306.35 and 362,188.49
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Solution
The fourth proportional to 663,988.01, 916,306.35 and 362,188.49 is: 499,821.70
Step by Step Solution
- Step 1: Write the proportion equation
663,988.01 : 916,306.35 = 362,188.49 : x - Step 2: Convert to fraction form
663,988.01/916,306.35 = 362,188.49/x - Step 3: Cross multiply
663,988.01x = 916,306.35 × 362,188.49 - Step 4: Simplify right side
663,988.01x = 331,875,613,283.91 - Step 5: Solve for x
x = 331,875,613,283.91/663,988.01 - Step 6: Final answer
x = 499,821.70
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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.