Finding the Fourth Proportional to 815,285, 1,221,595.68 and 495,534.68
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Solution
The fourth proportional to 815,285, 1,221,595.68 and 495,534.68 is: 742,492.53
Step by Step Solution
- Step 1: Write the proportion equation
815,285 : 1,221,595.68 = 495,534.68 : x - Step 2: Convert to fraction form
815,285/1,221,595.68 = 495,534.68/x - Step 3: Cross multiply
815,285x = 1,221,595.68 × 495,534.68 - Step 4: Simplify right side
815,285x = 605,343,024,378.18 - Step 5: Solve for x
x = 605,343,024,378.18/815,285 - Step 6: Final answer
x = 742,492.53
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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.