Finding the Fourth Proportional to 1,420,217.28, 2,130,563.52 and 473,878.08
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Solution
The fourth proportional to 1,420,217.28, 2,130,563.52 and 473,878.08 is: 710,896.40
Step by Step Solution
- Step 1: Write the proportion equation
1,420,217.28 : 2,130,563.52 = 473,878.08 : x - Step 2: Convert to fraction form
1,420,217.28/2,130,563.52 = 473,878.08/x - Step 3: Cross multiply
1,420,217.28x = 2,130,563.52 × 473,878.08 - Step 4: Simplify right side
1,420,217.28x = 1,009,627,350,175.64 - Step 5: Solve for x
x = 1,009,627,350,175.64/1,420,217.28 - Step 6: Final answer
x = 710,896.40
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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.