Finding the Fourth Proportional to 1,281,917.40, 1,920,341.70 and 1,124,323.80
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Solution
The fourth proportional to 1,281,917.40, 1,920,341.70 and 1,124,323.80 is: 1,684,262.87
Step by Step Solution
- Step 1: Write the proportion equation
1,281,917.40 : 1,920,341.70 = 1,124,323.80 : x - Step 2: Convert to fraction form
1,281,917.40/1,920,341.70 = 1,124,323.80/x - Step 3: Cross multiply
1,281,917.40x = 1,920,341.70 × 1,124,323.80 - Step 4: Simplify right side
1,281,917.40x = 2,159,085,877,442.46 - Step 5: Solve for x
x = 2,159,085,877,442.46/1,281,917.40 - Step 6: Final answer
x = 1,684,262.87
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.