Finding the Fourth Proportional to 1,125,374.48, 1,553,140.68 and 717,491.12
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Solution
The fourth proportional to 1,125,374.48, 1,553,140.68 and 717,491.12 is: 990,216.74
Step by Step Solution
- Step 1: Write the proportion equation
1,125,374.48 : 1,553,140.68 = 717,491.12 : x - Step 2: Convert to fraction form
1,125,374.48/1,553,140.68 = 717,491.12/x - Step 3: Cross multiply
1,125,374.48x = 1,553,140.68 × 717,491.12 - Step 4: Simplify right side
1,125,374.48x = 1,114,364,646,010.76 - Step 5: Solve for x
x = 1,114,364,646,010.76/1,125,374.48 - Step 6: Final answer
x = 990,216.74
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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.