Finding the Fourth Proportional to 885,503.66, 1,221,990.99 and 483,095.66
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Solution
The fourth proportional to 885,503.66, 1,221,990.99 and 483,095.66 is: 666,669.80
Step by Step Solution
- Step 1: Write the proportion equation
885,503.66 : 1,221,990.99 = 483,095.66 : x - Step 2: Convert to fraction form
885,503.66/1,221,990.99 = 483,095.66/x - Step 3: Cross multiply
885,503.66x = 1,221,990.99 × 483,095.66 - Step 4: Simplify right side
885,503.66x = 590,338,543,828.10 - Step 5: Solve for x
x = 590,338,543,828.10/885,503.66 - Step 6: Final answer
x = 666,669.80
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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.