Finding the Fourth Proportional to 1,420,115.60, 2,130,184.20 and 473,484.80
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Solution
The fourth proportional to 1,420,115.60, 2,130,184.20 and 473,484.80 is: 710,230.80
Step by Step Solution
- Step 1: Write the proportion equation
1,420,115.60 : 2,130,184.20 = 473,484.80 : x - Step 2: Convert to fraction form
1,420,115.60/2,130,184.20 = 473,484.80/x - Step 3: Cross multiply
1,420,115.60x = 2,130,184.20 × 473,484.80 - Step 4: Simplify right side
1,420,115.60x = 1,008,609,839,900.16 - Step 5: Solve for x
x = 1,008,609,839,900.16/1,420,115.60 - Step 6: Final answer
x = 710,230.80
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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.