Finding the Fourth Proportional to 1,052,980.07, 1,579,666.98 and 421,943.09
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Solution
The fourth proportional to 1,052,980.07, 1,579,666.98 and 421,943.09 is: 632,993.52
Step by Step Solution
- Step 1: Write the proportion equation
1,052,980.07 : 1,579,666.98 = 421,943.09 : x - Step 2: Convert to fraction form
1,052,980.07/1,579,666.98 = 421,943.09/x - Step 3: Cross multiply
1,052,980.07x = 1,579,666.98 × 421,943.09 - Step 4: Simplify right side
1,052,980.07x = 666,529,558,813.83 - Step 5: Solve for x
x = 666,529,558,813.83/1,052,980.07 - Step 6: Final answer
x = 632,993.52
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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.