Finding the Fourth Proportional to 1,257,635.64, 1,736,690.16 and 798,898.68
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Solution
The fourth proportional to 1,257,635.64, 1,736,690.16 and 798,898.68 is: 1,103,212.59
Step by Step Solution
- Step 1: Write the proportion equation
1,257,635.64 : 1,736,690.16 = 798,898.68 : x - Step 2: Convert to fraction form
1,257,635.64/1,736,690.16 = 798,898.68/x - Step 3: Cross multiply
1,257,635.64x = 1,736,690.16 × 798,898.68 - Step 4: Simplify right side
1,257,635.64x = 1,387,439,476,392.99 - Step 5: Solve for x
x = 1,387,439,476,392.99/1,257,635.64 - Step 6: Final answer
x = 1,103,212.59
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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.