Finding the Fourth Proportional to 719,210.64, 1,078,991.64 and 239,437.44
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Solution
The fourth proportional to 719,210.64, 1,078,991.64 and 239,437.44 is: 359,214.65
Step by Step Solution
- Step 1: Write the proportion equation
719,210.64 : 1,078,991.64 = 239,437.44 : x - Step 2: Convert to fraction form
719,210.64/1,078,991.64 = 239,437.44/x - Step 3: Cross multiply
719,210.64x = 1,078,991.64 × 239,437.44 - Step 4: Simplify right side
719,210.64x = 258,350,996,063.00 - Step 5: Solve for x
x = 258,350,996,063.00/719,210.64 - Step 6: Final answer
x = 359,214.65
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1.5x scale
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.