Finding the Fourth Proportional to 620,120.17, 855,774.81 and 348,246.91
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Solution
The fourth proportional to 620,120.17, 855,774.81 and 348,246.91 is: 480,585.77
Step by Step Solution
- Step 1: Write the proportion equation
620,120.17 : 855,774.81 = 348,246.91 : x - Step 2: Convert to fraction form
620,120.17/855,774.81 = 348,246.91/x - Step 3: Cross multiply
620,120.17x = 855,774.81 × 348,246.91 - Step 4: Simplify right side
620,120.17x = 298,020,927,218.23 - Step 5: Solve for x
x = 298,020,927,218.23/620,120.17 - Step 6: Final answer
x = 480,585.77
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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.