Finding the Fourth Proportional to 1,122,772.07, 1,549,423.92 and 639,337.21
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Solution
The fourth proportional to 1,122,772.07, 1,549,423.92 and 639,337.21 is: 882,284.47
Step by Step Solution
- Step 1: Write the proportion equation
1,122,772.07 : 1,549,423.92 = 639,337.21 : x - Step 2: Convert to fraction form
1,122,772.07/1,549,423.92 = 639,337.21/x - Step 3: Cross multiply
1,122,772.07x = 1,549,423.92 × 639,337.21 - Step 4: Simplify right side
1,122,772.07x = 990,604,366,120.06 - Step 5: Solve for x
x = 990,604,366,120.06/1,122,772.07 - Step 6: Final answer
x = 882,284.47
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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.