Finding the Fourth Proportional to 1,558,807.47, 2,151,133.99 and 870,491.43
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Solution
The fourth proportional to 1,558,807.47, 2,151,133.99 and 870,491.43 is: 1,201,266.82
Step by Step Solution
- Step 1: Write the proportion equation
1,558,807.47 : 2,151,133.99 = 870,491.43 : x - Step 2: Convert to fraction form
1,558,807.47/2,151,133.99 = 870,491.43/x - Step 3: Cross multiply
1,558,807.47x = 2,151,133.99 × 870,491.43 - Step 4: Simplify right side
1,558,807.47x = 1,872,543,698,546.32 - Step 5: Solve for x
x = 1,872,543,698,546.32/1,558,807.47 - Step 6: Final answer
x = 1,201,266.82
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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.