Finding the Fourth Proportional to 1,427,890.86, 1,970,478.36 and 783,306.63
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Solution
The fourth proportional to 1,427,890.86, 1,970,478.36 and 783,306.63 is: 1,080,957.10
Step by Step Solution
- Step 1: Write the proportion equation
1,427,890.86 : 1,970,478.36 = 783,306.63 : x - Step 2: Convert to fraction form
1,427,890.86/1,970,478.36 = 783,306.63/x - Step 3: Cross multiply
1,427,890.86x = 1,970,478.36 × 783,306.63 - Step 4: Simplify right side
1,427,890.86x = 1,543,488,763,659.53 - Step 5: Solve for x
x = 1,543,488,763,659.53/1,427,890.86 - Step 6: Final answer
x = 1,080,957.10
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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.