Finding the Fourth Proportional to 1,137,208.71, 1,569,355.62 and 620,966.19
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Solution
The fourth proportional to 1,137,208.71, 1,569,355.62 and 620,966.19 is: 856,937.49
Step by Step Solution
- Step 1: Write the proportion equation
1,137,208.71 : 1,569,355.62 = 620,966.19 : x - Step 2: Convert to fraction form
1,137,208.71/1,569,355.62 = 620,966.19/x - Step 3: Cross multiply
1,137,208.71x = 1,569,355.62 × 620,966.19 - Step 4: Simplify right side
1,137,208.71x = 974,516,780,106.49 - Step 5: Solve for x
x = 974,516,780,106.49/1,137,208.71 - Step 6: Final answer
x = 856,937.49
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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.