Finding the Fourth Proportional to 692,129.97, 1,038,428.73 and 436,155.30
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Solution
The fourth proportional to 692,129.97, 1,038,428.73 and 436,155.30 is: 654,380.27
Step by Step Solution
- Step 1: Write the proportion equation
692,129.97 : 1,038,428.73 = 436,155.30 : x - Step 2: Convert to fraction form
692,129.97/1,038,428.73 = 436,155.30/x - Step 3: Cross multiply
692,129.97x = 1,038,428.73 × 436,155.30 - Step 4: Simplify right side
692,129.97x = 452,916,194,261.77 - Step 5: Solve for x
x = 452,916,194,261.77/692,129.97 - Step 6: Final answer
x = 654,380.27
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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.