Finding the Fourth Proportional to 1,000,359.74, 1,380,119.58 and 656,385.53
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Solution
The fourth proportional to 1,000,359.74, 1,380,119.58 and 656,385.53 is: 905,564.75
Step by Step Solution
- Step 1: Write the proportion equation
1,000,359.74 : 1,380,119.58 = 656,385.53 : x - Step 2: Convert to fraction form
1,000,359.74/1,380,119.58 = 656,385.53/x - Step 3: Cross multiply
1,000,359.74x = 1,380,119.58 × 656,385.53 - Step 4: Simplify right side
1,000,359.74x = 905,890,521,981.68 - Step 5: Solve for x
x = 905,890,521,981.68/1,000,359.74 - Step 6: Final answer
x = 905,564.75
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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.