Finding the Fourth Proportional to 2,455,389.08, 3,388,177.76 and 1,423,220.66
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Solution
The fourth proportional to 2,455,389.08, 3,388,177.76 and 1,423,220.66 is: 1,963,894.28
Step by Step Solution
- Step 1: Write the proportion equation
2,455,389.08 : 3,388,177.76 = 1,423,220.66 : x - Step 2: Convert to fraction form
2,455,389.08/3,388,177.76 = 1,423,220.66/x - Step 3: Cross multiply
2,455,389.08x = 3,388,177.76 × 1,423,220.66 - Step 4: Simplify right side
2,455,389.08x = 4,822,124,576,433.20 - Step 5: Solve for x
x = 4,822,124,576,433.20/2,455,389.08 - Step 6: Final answer
x = 1,963,894.28
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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.