Finding the Fourth Proportional to 1,555,505.68, 2,146,598.16 and 840,113.68
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Solution
The fourth proportional to 1,555,505.68, 2,146,598.16 and 840,113.68 is: 1,159,357.05
Step by Step Solution
- Step 1: Write the proportion equation
1,555,505.68 : 2,146,598.16 = 840,113.68 : x - Step 2: Convert to fraction form
1,555,505.68/2,146,598.16 = 840,113.68/x - Step 3: Cross multiply
1,555,505.68x = 2,146,598.16 × 840,113.68 - Step 4: Simplify right side
1,555,505.68x = 1,803,386,479,678.83 - Step 5: Solve for x
x = 1,803,386,479,678.83/1,555,505.68 - Step 6: Final answer
x = 1,159,357.05
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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.