Finding the Fourth Proportional to 725,869.53, 1,086,675.12 and 508,976.19
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Solution
The fourth proportional to 725,869.53, 1,086,675.12 and 508,976.19 is: 761,971.32
Step by Step Solution
- Step 1: Write the proportion equation
725,869.53 : 1,086,675.12 = 508,976.19 : x - Step 2: Convert to fraction form
725,869.53/1,086,675.12 = 508,976.19/x - Step 3: Cross multiply
725,869.53x = 1,086,675.12 × 508,976.19 - Step 4: Simplify right side
725,869.53x = 553,091,762,345.39 - Step 5: Solve for x
x = 553,091,762,345.39/725,869.53 - Step 6: Final answer
x = 761,971.32
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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.