Finding the Fourth Proportional to 911,219.19, 1,257,476.47 and 503,347.33
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Solution
The fourth proportional to 911,219.19, 1,257,476.47 and 503,347.33 is: 694,615.99
Step by Step Solution
- Step 1: Write the proportion equation
911,219.19 : 1,257,476.47 = 503,347.33 : x - Step 2: Convert to fraction form
911,219.19/1,257,476.47 = 503,347.33/x - Step 3: Cross multiply
911,219.19x = 1,257,476.47 × 503,347.33 - Step 4: Simplify right side
911,219.19x = 632,947,423,712.33 - Step 5: Solve for x
x = 632,947,423,712.33/911,219.19 - Step 6: Final answer
x = 694,615.99
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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.