Finding the Fourth Proportional to 947,106.45, 1,420,671.98 and 316,020.26
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Solution
The fourth proportional to 947,106.45, 1,420,671.98 and 316,020.26 is: 474,034.50
Step by Step Solution
- Step 1: Write the proportion equation
947,106.45 : 1,420,671.98 = 316,020.26 : x - Step 2: Convert to fraction form
947,106.45/1,420,671.98 = 316,020.26/x - Step 3: Cross multiply
947,106.45x = 1,420,671.98 × 316,020.26 - Step 4: Simplify right side
947,106.45x = 448,961,128,494.32 - Step 5: Solve for x
x = 448,961,128,494.32/947,106.45 - Step 6: Final answer
x = 474,034.50
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1.5x scale
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.