Finding the Fourth Proportional to 2,120,756.23, 2,926,555.95 and 1,153,890.28
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Solution
The fourth proportional to 2,120,756.23, 2,926,555.95 and 1,153,890.28 is: 1,592,320.90
Step by Step Solution
- Step 1: Write the proportion equation
2,120,756.23 : 2,926,555.95 = 1,153,890.28 : x - Step 2: Convert to fraction form
2,120,756.23/2,926,555.95 = 1,153,890.28/x - Step 3: Cross multiply
2,120,756.23x = 2,926,555.95 × 1,153,890.28 - Step 4: Simplify right side
2,120,756.23x = 3,376,924,464,581.17 - Step 5: Solve for x
x = 3,376,924,464,581.17/2,120,756.23 - Step 6: Final answer
x = 1,592,320.90
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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.