Finding the Fourth Proportional to 875,844.88, 1,209,072.81 and 513,218.41
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Solution
The fourth proportional to 875,844.88, 1,209,072.81 and 513,218.41 is: 708,479.82
Step by Step Solution
- Step 1: Write the proportion equation
875,844.88 : 1,209,072.81 = 513,218.41 : x - Step 2: Convert to fraction form
875,844.88/1,209,072.81 = 513,218.41/x - Step 3: Cross multiply
875,844.88x = 1,209,072.81 × 513,218.41 - Step 4: Simplify right side
875,844.88x = 620,518,426,405.48 - Step 5: Solve for x
x = 620,518,426,405.48/875,844.88 - Step 6: Final answer
x = 708,479.82
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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.