Finding the Fourth Proportional to 1,312,252.17, 1,968,378.28 and 314,980.17
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Solution
The fourth proportional to 1,312,252.17, 1,968,378.28 and 314,980.17 is: 472,470.26
Step by Step Solution
- Step 1: Write the proportion equation
1,312,252.17 : 1,968,378.28 = 314,980.17 : x - Step 2: Convert to fraction form
1,312,252.17/1,968,378.28 = 314,980.17/x - Step 3: Cross multiply
1,312,252.17x = 1,968,378.28 × 314,980.17 - Step 4: Simplify right side
1,312,252.17x = 620,000,129,933.73 - Step 5: Solve for x
x = 620,000,129,933.73/1,312,252.17 - Step 6: Final answer
x = 472,470.26
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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.