Finding the Fourth Proportional to 1,211,913.29, 1,817,673.04 and 572,215.79
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Solution
The fourth proportional to 1,211,913.29, 1,817,673.04 and 572,215.79 is: 858,230.72
Step by Step Solution
- Step 1: Write the proportion equation
1,211,913.29 : 1,817,673.04 = 572,215.79 : x - Step 2: Convert to fraction form
1,211,913.29/1,817,673.04 = 572,215.79/x - Step 3: Cross multiply
1,211,913.29x = 1,817,673.04 × 572,215.79 - Step 4: Simplify right side
1,211,913.29x = 1,040,101,214,545.30 - Step 5: Solve for x
x = 1,040,101,214,545.30/1,211,913.29 - Step 6: Final answer
x = 858,230.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.