Finding the Fourth Proportional to 1,559,260.79, 2,151,678.57 and 905,828.93
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Solution
The fourth proportional to 1,559,260.79, 2,151,678.57 and 905,828.93 is: 1,249,985.06
Step by Step Solution
- Step 1: Write the proportion equation
1,559,260.79 : 2,151,678.57 = 905,828.93 : x - Step 2: Convert to fraction form
1,559,260.79/2,151,678.57 = 905,828.93/x - Step 3: Cross multiply
1,559,260.79x = 2,151,678.57 × 905,828.93 - Step 4: Simplify right side
1,559,260.79x = 1,949,052,696,767.03 - Step 5: Solve for x
x = 1,949,052,696,767.03/1,559,260.79 - Step 6: Final answer
x = 1,249,985.06
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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.