Finding the Fourth Proportional to 817,589.32, 1,128,262.24 and 455,013.08
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Solution
The fourth proportional to 817,589.32, 1,128,262.24 and 455,013.08 is: 627,911.92
Step by Step Solution
- Step 1: Write the proportion equation
817,589.32 : 1,128,262.24 = 455,013.08 : x - Step 2: Convert to fraction form
817,589.32/1,128,262.24 = 455,013.08/x - Step 3: Cross multiply
817,589.32x = 1,128,262.24 × 455,013.08 - Step 4: Simplify right side
817,589.32x = 513,374,076,028.54 - Step 5: Solve for x
x = 513,374,076,028.54/817,589.32 - Step 6: Final answer
x = 627,911.92
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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.