Finding the Fourth Proportional to 565,518.38, 780,395.58 and 310,867.74
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Solution
The fourth proportional to 565,518.38, 780,395.58 and 310,867.74 is: 428,986.61
Step by Step Solution
- Step 1: Write the proportion equation
565,518.38 : 780,395.58 = 310,867.74 : x - Step 2: Convert to fraction form
565,518.38/780,395.58 = 310,867.74/x - Step 3: Cross multiply
565,518.38x = 780,395.58 × 310,867.74 - Step 4: Simplify right side
565,518.38x = 242,599,810,260.59 - Step 5: Solve for x
x = 242,599,810,260.59/565,518.38 - Step 6: Final answer
x = 428,986.61
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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.