Finding the Fourth Proportional to 861,417.72, 1,292,391.36 and 440,988.84
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Solution
The fourth proportional to 861,417.72, 1,292,391.36 and 440,988.84 is: 661,618.81
Step by Step Solution
- Step 1: Write the proportion equation
861,417.72 : 1,292,391.36 = 440,988.84 : x - Step 2: Convert to fraction form
861,417.72/1,292,391.36 = 440,988.84/x - Step 3: Cross multiply
861,417.72x = 1,292,391.36 × 440,988.84 - Step 4: Simplify right side
861,417.72x = 569,930,166,672.42 - Step 5: Solve for x
x = 569,930,166,672.42/861,417.72 - Step 6: Final answer
x = 661,618.81
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.