Finding the Fourth Proportional to 837,637.21, 1,155,938.43 and 455,663.08
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Solution
The fourth proportional to 837,637.21, 1,155,938.43 and 455,663.08 is: 628,814.55
Step by Step Solution
- Step 1: Write the proportion equation
837,637.21 : 1,155,938.43 = 455,663.08 : x - Step 2: Convert to fraction form
837,637.21/1,155,938.43 = 455,663.08/x - Step 3: Cross multiply
837,637.21x = 1,155,938.43 × 455,663.08 - Step 4: Simplify right side
837,637.21x = 526,718,465,304.16 - Step 5: Solve for x
x = 526,718,465,304.16/837,637.21 - Step 6: Final answer
x = 628,814.55
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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.