Finding the Fourth Proportional to 1,728,509.22, 2,386,364.49 and 1,246,319.46
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Solution
The fourth proportional to 1,728,509.22, 2,386,364.49 and 1,246,319.46 is: 1,720,657.59
Step by Step Solution
- Step 1: Write the proportion equation
1,728,509.22 : 2,386,364.49 = 1,246,319.46 : x - Step 2: Convert to fraction form
1,728,509.22/2,386,364.49 = 1,246,319.46/x - Step 3: Cross multiply
1,728,509.22x = 2,386,364.49 × 1,246,319.46 - Step 4: Simplify right side
1,728,509.22x = 2,974,172,502,539.98 - Step 5: Solve for x
x = 2,974,172,502,539.98/1,728,509.22 - Step 6: Final answer
x = 1,720,657.59
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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.