Finding the Fourth Proportional to 559,647.21, 772,340.52 and 314,709.05
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Solution
The fourth proportional to 559,647.21, 772,340.52 and 314,709.05 is: 434,313.88
Step by Step Solution
- Step 1: Write the proportion equation
559,647.21 : 772,340.52 = 314,709.05 : x - Step 2: Convert to fraction form
559,647.21/772,340.52 = 314,709.05/x - Step 3: Cross multiply
559,647.21x = 772,340.52 × 314,709.05 - Step 4: Simplify right side
559,647.21x = 243,062,547,464.00 - Step 5: Solve for x
x = 243,062,547,464.00/559,647.21 - Step 6: Final answer
x = 434,313.88
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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.