Finding the Fourth Proportional to 1,124,916.56, 1,553,109.36 and 1,003,849.68
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Solution
The fourth proportional to 1,124,916.56, 1,553,109.36 and 1,003,849.68 is: 1,385,959.09
Step by Step Solution
- Step 1: Write the proportion equation
1,124,916.56 : 1,553,109.36 = 1,003,849.68 : x - Step 2: Convert to fraction form
1,124,916.56/1,553,109.36 = 1,003,849.68/x - Step 3: Cross multiply
1,124,916.56x = 1,553,109.36 × 1,003,849.68 - Step 4: Simplify right side
1,124,916.56x = 1,559,088,334,041.01 - Step 5: Solve for x
x = 1,559,088,334,041.01/1,124,916.56 - Step 6: Final answer
x = 1,385,959.09
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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.