Finding the Fourth Proportional to 742,113.12, 1,024,115.66 and 402,581.38
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Solution
The fourth proportional to 742,113.12, 1,024,115.66 and 402,581.38 is: 555,562.06
Step by Step Solution
- Step 1: Write the proportion equation
742,113.12 : 1,024,115.66 = 402,581.38 : x - Step 2: Convert to fraction form
742,113.12/1,024,115.66 = 402,581.38/x - Step 3: Cross multiply
742,113.12x = 1,024,115.66 × 402,581.38 - Step 4: Simplify right side
742,113.12x = 412,289,895,682.41 - Step 5: Solve for x
x = 412,289,895,682.41/742,113.12 - Step 6: Final answer
x = 555,562.06
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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.