Finding the Fourth Proportional to 1,982,345.14, 2,730,519.36 and 1,400,558.36
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Solution
The fourth proportional to 1,982,345.14, 2,730,519.36 and 1,400,558.36 is: 1,929,155.34
Step by Step Solution
- Step 1: Write the proportion equation
1,982,345.14 : 2,730,519.36 = 1,400,558.36 : x - Step 2: Convert to fraction form
1,982,345.14/2,730,519.36 = 1,400,558.36/x - Step 3: Cross multiply
1,982,345.14x = 2,730,519.36 × 1,400,558.36 - Step 4: Simplify right side
1,982,345.14x = 3,824,251,708,256.98 - Step 5: Solve for x
x = 3,824,251,708,256.98/1,982,345.14 - Step 6: Final answer
x = 1,929,155.34
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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.