Finding the Fourth Proportional to 884,378.37, 1,220,485.41 and 497,315.60
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Solution
The fourth proportional to 884,378.37, 1,220,485.41 and 497,315.60 is: 686,319.85
Step by Step Solution
- Step 1: Write the proportion equation
884,378.37 : 1,220,485.41 = 497,315.60 : x - Step 2: Convert to fraction form
884,378.37/1,220,485.41 = 497,315.60/x - Step 3: Cross multiply
884,378.37x = 1,220,485.41 × 497,315.60 - Step 4: Simplify right side
884,378.37x = 606,966,427,862.97 - Step 5: Solve for x
x = 606,966,427,862.97/884,378.37 - Step 6: Final answer
x = 686,319.85
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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.