Finding the Fourth Proportional to 906,633.09, 1,251,146.76 and 498,726.17
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Solution
The fourth proportional to 906,633.09, 1,251,146.76 and 498,726.17 is: 688,238.32
Step by Step Solution
- Step 1: Write the proportion equation
906,633.09 : 1,251,146.76 = 498,726.17 : x - Step 2: Convert to fraction form
906,633.09/1,251,146.76 = 498,726.17/x - Step 3: Cross multiply
906,633.09x = 1,251,146.76 × 498,726.17 - Step 4: Simplify right side
906,633.09x = 623,979,631,722.71 - Step 5: Solve for x
x = 623,979,631,722.71/906,633.09 - Step 6: Final answer
x = 688,238.32
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1.5x scale
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.