Finding the Fourth Proportional to 508,903.40, 763,646.70 and 193,586.60
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Solution
The fourth proportional to 508,903.40, 763,646.70 and 193,586.60 is: 290,490.82
Step by Step Solution
- Step 1: Write the proportion equation
508,903.40 : 763,646.70 = 193,586.60 : x - Step 2: Convert to fraction form
508,903.40/763,646.70 = 193,586.60/x - Step 3: Cross multiply
508,903.40x = 763,646.70 × 193,586.60 - Step 4: Simplify right side
508,903.40x = 147,831,768,254.22 - Step 5: Solve for x
x = 147,831,768,254.22/508,903.40 - Step 6: Final answer
x = 290,490.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.