Finding the Fourth Proportional to 877,711.80, 1,211,235.36 and 475,303.80
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Solution
The fourth proportional to 877,711.80, 1,211,235.36 and 475,303.80 is: 655,915.49
Step by Step Solution
- Step 1: Write the proportion equation
877,711.80 : 1,211,235.36 = 475,303.80 : x - Step 2: Convert to fraction form
877,711.80/1,211,235.36 = 475,303.80/x - Step 3: Cross multiply
877,711.80x = 1,211,235.36 × 475,303.80 - Step 4: Simplify right side
877,711.80x = 575,704,769,302.37 - Step 5: Solve for x
x = 575,704,769,302.37/877,711.80 - Step 6: Final answer
x = 655,915.49
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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.