Finding the Fourth Proportional to 828,548.63, 1,143,011.05 and 538,139.63
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Solution
The fourth proportional to 828,548.63, 1,143,011.05 and 538,139.63 is: 742,381.95
Step by Step Solution
- Step 1: Write the proportion equation
828,548.63 : 1,143,011.05 = 538,139.63 : x - Step 2: Convert to fraction form
828,548.63/1,143,011.05 = 538,139.63/x - Step 3: Cross multiply
828,548.63x = 1,143,011.05 × 538,139.63 - Step 4: Simplify right side
828,548.63x = 615,099,545,045.09 - Step 5: Solve for x
x = 615,099,545,045.09/828,548.63 - Step 6: Final answer
x = 742,381.95
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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.