Finding the Fourth Proportional to 817,206.61, 1,128,300.69 and 511,406.62
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Solution
The fourth proportional to 817,206.61, 1,128,300.69 and 511,406.62 is: 706,088.81
Step by Step Solution
- Step 1: Write the proportion equation
817,206.61 : 1,128,300.69 = 511,406.62 : x - Step 2: Convert to fraction form
817,206.61/1,128,300.69 = 511,406.62/x - Step 3: Cross multiply
817,206.61x = 1,128,300.69 × 511,406.62 - Step 4: Simplify right side
817,206.61x = 577,020,442,216.57 - Step 5: Solve for x
x = 577,020,442,216.57/817,206.61 - Step 6: Final answer
x = 706,088.81
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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.