Finding the Fourth Proportional to 1,557,490.66, 2,148,930.94 and 912,564.34
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Solution
The fourth proportional to 1,557,490.66, 2,148,930.94 and 912,564.34 is: 1,259,100.81
Step by Step Solution
- Step 1: Write the proportion equation
1,557,490.66 : 2,148,930.94 = 912,564.34 : x - Step 2: Convert to fraction form
1,557,490.66/2,148,930.94 = 912,564.34/x - Step 3: Cross multiply
1,557,490.66x = 2,148,930.94 × 912,564.34 - Step 4: Simplify right side
1,557,490.66x = 1,961,037,744,966.68 - Step 5: Solve for x
x = 1,961,037,744,966.68/1,557,490.66 - Step 6: Final answer
x = 1,259,100.81
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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.