Finding the Fourth Proportional to 861,651.79, 1,189,111.73 and 474,483.99
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Solution
The fourth proportional to 861,651.79, 1,189,111.73 and 474,483.99 is: 654,805.67
Step by Step Solution
- Step 1: Write the proportion equation
861,651.79 : 1,189,111.73 = 474,483.99 : x - Step 2: Convert to fraction form
861,651.79/1,189,111.73 = 474,483.99/x - Step 3: Cross multiply
861,651.79x = 1,189,111.73 × 474,483.99 - Step 4: Simplify right side
861,651.79x = 564,214,480,292.95 - Step 5: Solve for x
x = 564,214,480,292.95/861,651.79 - Step 6: Final answer
x = 654,805.67
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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.