Finding the Fourth Proportional to 2,122,294.82, 2,928,819.47 and 1,155,478.14
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Solution
The fourth proportional to 2,122,294.82, 2,928,819.47 and 1,155,478.14 is: 1,594,588.48
Step by Step Solution
- Step 1: Write the proportion equation
2,122,294.82 : 2,928,819.47 = 1,155,478.14 : x - Step 2: Convert to fraction form
2,122,294.82/2,928,819.47 = 1,155,478.14/x - Step 3: Cross multiply
2,122,294.82x = 2,928,819.47 × 1,155,478.14 - Step 4: Simplify right side
2,122,294.82x = 3,384,186,867,813.99 - Step 5: Solve for x
x = 3,384,186,867,813.99/2,122,294.82 - Step 6: Final answer
x = 1,594,588.48
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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.