Finding the Fourth Proportional to 1,943,420.52, 2,681,913.36 and 1,083,980.12
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Solution
The fourth proportional to 1,943,420.52, 2,681,913.36 and 1,083,980.12 is: 1,495,888.68
Step by Step Solution
- Step 1: Write the proportion equation
1,943,420.52 : 2,681,913.36 = 1,083,980.12 : x - Step 2: Convert to fraction form
1,943,420.52/2,681,913.36 = 1,083,980.12/x - Step 3: Cross multiply
1,943,420.52x = 2,681,913.36 × 1,083,980.12 - Step 4: Simplify right side
1,943,420.52x = 2,907,140,765,802.40 - Step 5: Solve for x
x = 2,907,140,765,802.40/1,943,420.52 - Step 6: Final answer
x = 1,495,888.68
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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.