Finding the Fourth Proportional to 1,693,128.48, 2,336,545.80 and 929,253.12
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Solution
The fourth proportional to 1,693,128.48, 2,336,545.80 and 929,253.12 is: 1,282,384.95
Step by Step Solution
- Step 1: Write the proportion equation
1,693,128.48 : 2,336,545.80 = 929,253.12 : x - Step 2: Convert to fraction form
1,693,128.48/2,336,545.80 = 929,253.12/x - Step 3: Cross multiply
1,693,128.48x = 2,336,545.80 × 929,253.12 - Step 4: Simplify right side
1,693,128.48x = 2,171,242,474,672.90 - Step 5: Solve for x
x = 2,171,242,474,672.90/1,693,128.48 - Step 6: Final answer
x = 1,282,384.95
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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.