Finding the Fourth Proportional to 2,254,149.11, 3,110,717.71 and 1,221,681.94
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Solution
The fourth proportional to 2,254,149.11, 3,110,717.71 and 1,221,681.94 is: 1,685,916.71
Step by Step Solution
- Step 1: Write the proportion equation
2,254,149.11 : 3,110,717.71 = 1,221,681.94 : x - Step 2: Convert to fraction form
2,254,149.11/3,110,717.71 = 1,221,681.94/x - Step 3: Cross multiply
2,254,149.11x = 3,110,717.71 × 1,221,681.94 - Step 4: Simplify right side
2,254,149.11x = 3,800,307,646,745.16 - Step 5: Solve for x
x = 3,800,307,646,745.16/2,254,149.11 - Step 6: Final answer
x = 1,685,916.71
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1.5x scale
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.