Finding the Fourth Proportional to 1,804,720.95, 2,489,583.40 and 1,223,747.53
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Solution
The fourth proportional to 1,804,720.95, 2,489,583.40 and 1,223,747.53 is: 1,688,139.95
Step by Step Solution
- Step 1: Write the proportion equation
1,804,720.95 : 2,489,583.40 = 1,223,747.53 : x - Step 2: Convert to fraction form
1,804,720.95/2,489,583.40 = 1,223,747.53/x - Step 3: Cross multiply
1,804,720.95x = 2,489,583.40 × 1,223,747.53 - Step 4: Simplify right side
1,804,720.95x = 3,046,621,527,195.68 - Step 5: Solve for x
x = 3,046,621,527,195.68/1,804,720.95 - Step 6: Final answer
x = 1,688,139.95
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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.