Finding the Fourth Proportional to 1,276,931.58, 1,915,397.37 and 435,490.62
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Solution
The fourth proportional to 1,276,931.58, 1,915,397.37 and 435,490.62 is: 653,235.93
Step by Step Solution
- Step 1: Write the proportion equation
1,276,931.58 : 1,915,397.37 = 435,490.62 : x - Step 2: Convert to fraction form
1,276,931.58/1,915,397.37 = 435,490.62/x - Step 3: Cross multiply
1,276,931.58x = 1,915,397.37 × 435,490.62 - Step 4: Simplify right side
1,276,931.58x = 834,137,588,207.67 - Step 5: Solve for x
x = 834,137,588,207.67/1,276,931.58 - Step 6: Final answer
x = 653,235.93
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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.