Finding the Fourth Proportional to 570,475.26, 787,225.90 and 312,302.70
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Solution
The fourth proportional to 570,475.26, 787,225.90 and 312,302.70 is: 430,961.33
Step by Step Solution
- Step 1: Write the proportion equation
570,475.26 : 787,225.90 = 312,302.70 : x - Step 2: Convert to fraction form
570,475.26/787,225.90 = 312,302.70/x - Step 3: Cross multiply
570,475.26x = 787,225.90 × 312,302.70 - Step 4: Simplify right side
570,475.26x = 245,852,774,079.93 - Step 5: Solve for x
x = 245,852,774,079.93/570,475.26 - Step 6: Final answer
x = 430,961.33
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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.