Finding the Fourth Proportional to 1,979,788.08, 2,732,109.30 and 1,074,370.08
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Solution
The fourth proportional to 1,979,788.08, 2,732,109.30 and 1,074,370.08 is: 1,482,631.66
Step by Step Solution
- Step 1: Write the proportion equation
1,979,788.08 : 2,732,109.30 = 1,074,370.08 : x - Step 2: Convert to fraction form
1,979,788.08/2,732,109.30 = 1,074,370.08/x - Step 3: Cross multiply
1,979,788.08x = 2,732,109.30 × 1,074,370.08 - Step 4: Simplify right side
1,979,788.08x = 2,935,296,487,209.74 - Step 5: Solve for x
x = 2,935,296,487,209.74/1,979,788.08 - Step 6: Final answer
x = 1,482,631.66
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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.