Finding the Fourth Proportional to 747,735.38, 1,031,869.58 and 408,203.63
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Solution
The fourth proportional to 747,735.38, 1,031,869.58 and 408,203.63 is: 563,318.15
Step by Step Solution
- Step 1: Write the proportion equation
747,735.38 : 1,031,869.58 = 408,203.63 : x - Step 2: Convert to fraction form
747,735.38/1,031,869.58 = 408,203.63/x - Step 3: Cross multiply
747,735.38x = 1,031,869.58 × 408,203.63 - Step 4: Simplify right side
747,735.38x = 421,212,908,781.23 - Step 5: Solve for x
x = 421,212,908,781.23/747,735.38 - Step 6: Final answer
x = 563,318.15
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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.