Finding the Fourth Proportional to 1,564,358.38, 2,158,845.21 and 1,020,841.90
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Solution
The fourth proportional to 1,564,358.38, 2,158,845.21 and 1,020,841.90 is: 1,408,781.82
Step by Step Solution
- Step 1: Write the proportion equation
1,564,358.38 : 2,158,845.21 = 1,020,841.90 : x - Step 2: Convert to fraction form
1,564,358.38/2,158,845.21 = 1,020,841.90/x - Step 3: Cross multiply
1,564,358.38x = 2,158,845.21 × 1,020,841.90 - Step 4: Simplify right side
1,564,358.38x = 2,203,839,645,982.30 - Step 5: Solve for x
x = 2,203,839,645,982.30/1,564,358.38 - Step 6: Final answer
x = 1,408,781.82
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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.