Finding the Fourth Proportional to 1,315,992.84, 1,974,719.16 and 642,079.68
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Solution
The fourth proportional to 1,315,992.84, 1,974,719.16 and 642,079.68 is: 963,475.64
Step by Step Solution
- Step 1: Write the proportion equation
1,315,992.84 : 1,974,719.16 = 642,079.68 : x - Step 2: Convert to fraction form
1,315,992.84/1,974,719.16 = 642,079.68/x - Step 3: Cross multiply
1,315,992.84x = 1,974,719.16 × 642,079.68 - Step 4: Simplify right side
1,315,992.84x = 1,267,927,046,342.67 - Step 5: Solve for x
x = 1,267,927,046,342.67/1,315,992.84 - Step 6: Final answer
x = 963,475.64
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.