Finding the Fourth Proportional to 990,167.24, 1,485,307.80 and 280,135.76
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Solution
The fourth proportional to 990,167.24, 1,485,307.80 and 280,135.76 is: 420,219.75
Step by Step Solution
- Step 1: Write the proportion equation
990,167.24 : 1,485,307.80 = 280,135.76 : x - Step 2: Convert to fraction form
990,167.24/1,485,307.80 = 280,135.76/x - Step 3: Cross multiply
990,167.24x = 1,485,307.80 × 280,135.76 - Step 4: Simplify right side
990,167.24x = 416,087,829,386.93 - Step 5: Solve for x
x = 416,087,829,386.93/990,167.24 - Step 6: Final answer
x = 420,219.75
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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.