Finding the Fourth Proportional to 1,425,248.08, 1,966,843.20 and 780,679.06
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Solution
The fourth proportional to 1,425,248.08, 1,966,843.20 and 780,679.06 is: 1,077,337.57
Step by Step Solution
- Step 1: Write the proportion equation
1,425,248.08 : 1,966,843.20 = 780,679.06 : x - Step 2: Convert to fraction form
1,425,248.08/1,966,843.20 = 780,679.06/x - Step 3: Cross multiply
1,425,248.08x = 1,966,843.20 × 780,679.06 - Step 4: Simplify right side
1,425,248.08x = 1,535,473,300,543.39 - Step 5: Solve for x
x = 1,535,473,300,543.39/1,425,248.08 - Step 6: Final answer
x = 1,077,337.57
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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.