Finding the Fourth Proportional to 960,308.31, 1,321,400.84 and 931,089.99
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Solution
The fourth proportional to 960,308.31, 1,321,400.84 and 931,089.99 is: 1,281,195.92
Step by Step Solution
- Step 1: Write the proportion equation
960,308.31 : 1,321,400.84 = 931,089.99 : x - Step 2: Convert to fraction form
960,308.31/1,321,400.84 = 931,089.99/x - Step 3: Cross multiply
960,308.31x = 1,321,400.84 × 931,089.99 - Step 4: Simplify right side
960,308.31x = 1,230,343,090,246.14 - Step 5: Solve for x
x = 1,230,343,090,246.14/960,308.31 - Step 6: Final answer
x = 1,281,195.92
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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.