Finding the Fourth Proportional to 1,420,007.40, 2,128,974.30 and 578,125.80
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Solution
The fourth proportional to 1,420,007.40, 2,128,974.30 and 578,125.80 is: 866,766.59
Step by Step Solution
- Step 1: Write the proportion equation
1,420,007.40 : 2,128,974.30 = 578,125.80 : x - Step 2: Convert to fraction form
1,420,007.40/2,128,974.30 = 578,125.80/x - Step 3: Cross multiply
1,420,007.40x = 2,128,974.30 × 578,125.80 - Step 4: Simplify right side
1,420,007.40x = 1,230,814,970,366.94 - Step 5: Solve for x
x = 1,230,814,970,366.94/1,420,007.40 - Step 6: Final answer
x = 866,766.59
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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.