Finding the Fourth Proportional to 611,871.99, 844,504.16 and 390,967.98
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Solution
The fourth proportional to 611,871.99, 844,504.16 and 390,967.98 is: 539,613.01
Step by Step Solution
- Step 1: Write the proportion equation
611,871.99 : 844,504.16 = 390,967.98 : x - Step 2: Convert to fraction form
611,871.99/844,504.16 = 390,967.98/x - Step 3: Cross multiply
611,871.99x = 844,504.16 × 390,967.98 - Step 4: Simplify right side
611,871.99x = 330,174,083,581.96 - Step 5: Solve for x
x = 330,174,083,581.96/611,871.99 - Step 6: Final answer
x = 539,613.01
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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.