Finding the Fourth Proportional to 4,307,812.47, 6,462,916.09 and 1,879,178.13
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Solution
The fourth proportional to 4,307,812.47, 6,462,916.09 and 1,879,178.13 is: 2,819,289.52
Step by Step Solution
- Step 1: Write the proportion equation
4,307,812.47 : 6,462,916.09 = 1,879,178.13 : x - Step 2: Convert to fraction form
4,307,812.47/6,462,916.09 = 1,879,178.13/x - Step 3: Cross multiply
4,307,812.47x = 6,462,916.09 × 1,879,178.13 - Step 4: Simplify right side
4,307,812.47x = 12,144,970,567,655.17 - Step 5: Solve for x
x = 12,144,970,567,655.17/4,307,812.47 - Step 6: Final answer
x = 2,819,289.52
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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.