Finding the Fourth Proportional to 1,142,040, 1,712,395.99 and 432,122.79
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Solution
The fourth proportional to 1,142,040, 1,712,395.99 and 432,122.79 is: 647,932.94
Step by Step Solution
- Step 1: Write the proportion equation
1,142,040 : 1,712,395.99 = 432,122.79 : x - Step 2: Convert to fraction form
1,142,040/1,712,395.99 = 432,122.79/x - Step 3: Cross multiply
1,142,040x = 1,712,395.99 × 432,122.79 - Step 4: Simplify right side
1,142,040x = 739,965,332,783.61 - Step 5: Solve for x
x = 739,965,332,783.61/1,142,040 - Step 6: Final answer
x = 647,932.94
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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.