Finding the Fourth Proportional to 920,055.16, 1,268,364.18 and 715,747.24
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Solution
The fourth proportional to 920,055.16, 1,268,364.18 and 715,747.24 is: 986,710.58
Step by Step Solution
- Step 1: Write the proportion equation
920,055.16 : 1,268,364.18 = 715,747.24 : x - Step 2: Convert to fraction form
920,055.16/1,268,364.18 = 715,747.24/x - Step 3: Cross multiply
920,055.16x = 1,268,364.18 × 715,747.24 - Step 4: Simplify right side
920,055.16x = 907,828,161,149.86 - Step 5: Solve for x
x = 907,828,161,149.86/920,055.16 - Step 6: Final answer
x = 986,710.58
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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.