Finding the Fourth Proportional to 1,173,178.08, 1,618,985.88 and 636,634.08
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Solution
The fourth proportional to 1,173,178.08, 1,618,985.88 and 636,634.08 is: 878,555.10
Step by Step Solution
- Step 1: Write the proportion equation
1,173,178.08 : 1,618,985.88 = 636,634.08 : x - Step 2: Convert to fraction form
1,173,178.08/1,618,985.88 = 636,634.08/x - Step 3: Cross multiply
1,173,178.08x = 1,618,985.88 × 636,634.08 - Step 4: Simplify right side
1,173,178.08x = 1,030,701,586,246.79 - Step 5: Solve for x
x = 1,030,701,586,246.79/1,173,178.08 - Step 6: Final answer
x = 878,555.10
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1.5x scale
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.