Finding the Fourth Proportional to 817,726.91, 1,128,454.52 and 455,144.99
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Solution
The fourth proportional to 817,726.91, 1,128,454.52 and 455,144.99 is: 628,095.29
Step by Step Solution
- Step 1: Write the proportion equation
817,726.91 : 1,128,454.52 = 455,144.99 : x - Step 2: Convert to fraction form
817,726.91/1,128,454.52 = 455,144.99/x - Step 3: Cross multiply
817,726.91x = 1,128,454.52 × 455,144.99 - Step 4: Simplify right side
817,726.91x = 513,610,418,945.13 - Step 5: Solve for x
x = 513,610,418,945.13/817,726.91 - Step 6: Final answer
x = 628,095.29
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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.