Finding the Fourth Proportional to 885,378.12, 1,221,820.38 and 482,970.12
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Solution
The fourth proportional to 885,378.12, 1,221,820.38 and 482,970.12 is: 666,497.99
Step by Step Solution
- Step 1: Write the proportion equation
885,378.12 : 1,221,820.38 = 482,970.12 : x - Step 2: Convert to fraction form
885,378.12/1,221,820.38 = 482,970.12/x - Step 3: Cross multiply
885,378.12x = 1,221,820.38 × 482,970.12 - Step 4: Simplify right side
885,378.12x = 590,102,735,547.05 - Step 5: Solve for x
x = 590,102,735,547.05/885,378.12 - Step 6: Final answer
x = 666,497.99
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1.5x scale
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.