Finding the Fourth Proportional to 947,117.64, 1,421,236.94 and 348,499.17
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Solution
The fourth proportional to 947,117.64, 1,421,236.94 and 348,499.17 is: 522,954.99
Step by Step Solution
- Step 1: Write the proportion equation
947,117.64 : 1,421,236.94 = 348,499.17 : x - Step 2: Convert to fraction form
947,117.64/1,421,236.94 = 348,499.17/x - Step 3: Cross multiply
947,117.64x = 1,421,236.94 × 348,499.17 - Step 4: Simplify right side
947,117.64x = 495,299,893,963.34 - Step 5: Solve for x
x = 495,299,893,963.34/947,117.64 - Step 6: Final answer
x = 522,954.99
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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.