Finding the Fourth Proportional to 1,276,931.98, 1,762,231.31 and 703,970.79
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Solution
The fourth proportional to 1,276,931.98, 1,762,231.31 and 703,970.79 is: 971,515.62
Step by Step Solution
- Step 1: Write the proportion equation
1,276,931.98 : 1,762,231.31 = 703,970.79 : x - Step 2: Convert to fraction form
1,276,931.98/1,762,231.31 = 703,970.79/x - Step 3: Cross multiply
1,276,931.98x = 1,762,231.31 × 703,970.79 - Step 4: Simplify right side
1,276,931.98x = 1,240,559,367,463.44 - Step 5: Solve for x
x = 1,240,559,367,463.44/1,276,931.98 - Step 6: Final answer
x = 971,515.62
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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.