Finding the Fourth Proportional to 712,875.80, 1,069,313.70 and 214,239.80
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Solution
The fourth proportional to 712,875.80, 1,069,313.70 and 214,239.80 is: 321,359.70
Step by Step Solution
- Step 1: Write the proportion equation
712,875.80 : 1,069,313.70 = 214,239.80 : x - Step 2: Convert to fraction form
712,875.80/1,069,313.70 = 214,239.80/x - Step 3: Cross multiply
712,875.80x = 1,069,313.70 × 214,239.80 - Step 4: Simplify right side
712,875.80x = 229,089,553,225.26 - Step 5: Solve for x
x = 229,089,553,225.26/712,875.80 - Step 6: Final answer
x = 321,359.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.