Finding the Fourth Proportional to 1,812,139.19, 2,712,294.23 and 1,332,239.97
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Solution
The fourth proportional to 1,812,139.19, 2,712,294.23 and 1,332,239.97 is: 1,994,011.73
Step by Step Solution
- Step 1: Write the proportion equation
1,812,139.19 : 2,712,294.23 = 1,332,239.97 : x - Step 2: Convert to fraction form
1,812,139.19/2,712,294.23 = 1,332,239.97/x - Step 3: Cross multiply
1,812,139.19x = 2,712,294.23 × 1,332,239.97 - Step 4: Simplify right side
1,812,139.19x = 3,613,426,791,992.64 - Step 5: Solve for x
x = 3,613,426,791,992.64/1,812,139.19 - Step 6: Final answer
x = 1,994,011.73
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.