Finding the Fourth Proportional to 861,434.36, 1,188,790.68 and 474,294.80
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Solution
The fourth proportional to 861,434.36, 1,188,790.68 and 474,294.80 is: 654,533.03
Step by Step Solution
- Step 1: Write the proportion equation
861,434.36 : 1,188,790.68 = 474,294.80 : x - Step 2: Convert to fraction form
861,434.36/1,188,790.68 = 474,294.80/x - Step 3: Cross multiply
861,434.36x = 1,188,790.68 × 474,294.80 - Step 4: Simplify right side
861,434.36x = 563,837,237,812.46 - Step 5: Solve for x
x = 563,837,237,812.46/861,434.36 - Step 6: Final answer
x = 654,533.03
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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.