Finding the Fourth Proportional to 1,817,745.70, 2,507,567.19 and 1,387,278.49
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Solution
The fourth proportional to 1,817,745.70, 2,507,567.19 and 1,387,278.49 is: 1,913,740.75
Step by Step Solution
- Step 1: Write the proportion equation
1,817,745.70 : 2,507,567.19 = 1,387,278.49 : x - Step 2: Convert to fraction form
1,817,745.70/2,507,567.19 = 1,387,278.49/x - Step 3: Cross multiply
1,817,745.70x = 2,507,567.19 × 1,387,278.49 - Step 4: Simplify right side
1,817,745.70x = 3,478,694,024,916.74 - Step 5: Solve for x
x = 3,478,694,024,916.74/1,817,745.70 - Step 6: Final answer
x = 1,913,740.75
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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.