Finding the Fourth Proportional to 768,726.10, 1,152,088.97 and 312,785.98
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Solution
The fourth proportional to 768,726.10, 1,152,088.97 and 312,785.98 is: 468,772.01
Step by Step Solution
- Step 1: Write the proportion equation
768,726.10 : 1,152,088.97 = 312,785.98 : x - Step 2: Convert to fraction form
768,726.10/1,152,088.97 = 312,785.98/x - Step 3: Cross multiply
768,726.10x = 1,152,088.97 × 312,785.98 - Step 4: Simplify right side
768,726.10x = 360,357,277,528.64 - Step 5: Solve for x
x = 360,357,277,528.64/768,726.10 - Step 6: Final answer
x = 468,772.01
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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.