Finding the Fourth Proportional to 874,078.48, 1,206,248.93 and 486,919.95
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Solution
The fourth proportional to 874,078.48, 1,206,248.93 and 486,919.95 is: 671,961.02
Step by Step Solution
- Step 1: Write the proportion equation
874,078.48 : 1,206,248.93 = 486,919.95 : x - Step 2: Convert to fraction form
874,078.48/1,206,248.93 = 486,919.95/x - Step 3: Cross multiply
874,078.48x = 1,206,248.93 × 486,919.95 - Step 4: Simplify right side
874,078.48x = 587,346,668,683.15 - Step 5: Solve for x
x = 587,346,668,683.15/874,078.48 - Step 6: Final answer
x = 671,961.02
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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.