Finding the Fourth Proportional to 1,420,331.68, 2,130,503.28 and 355,370.80
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Solution
The fourth proportional to 1,420,331.68, 2,130,503.28 and 355,370.80 is: 533,057.64
Step by Step Solution
- Step 1: Write the proportion equation
1,420,331.68 : 2,130,503.28 = 355,370.80 : x - Step 2: Convert to fraction form
1,420,331.68/2,130,503.28 = 355,370.80/x - Step 3: Cross multiply
1,420,331.68x = 2,130,503.28 × 355,370.80 - Step 4: Simplify right side
1,420,331.68x = 757,118,655,016.22 - Step 5: Solve for x
x = 757,118,655,016.22/1,420,331.68 - Step 6: Final answer
x = 533,057.64
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.