Finding the Fourth Proportional to 1,170,383.18, 1,615,260.14 and 661,118.36
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Solution
The fourth proportional to 1,170,383.18, 1,615,260.14 and 661,118.36 is: 912,417.53
Step by Step Solution
- Step 1: Write the proportion equation
1,170,383.18 : 1,615,260.14 = 661,118.36 : x - Step 2: Convert to fraction form
1,170,383.18/1,615,260.14 = 661,118.36/x - Step 3: Cross multiply
1,170,383.18x = 1,615,260.14 × 661,118.36 - Step 4: Simplify right side
1,170,383.18x = 1,067,878,134,730.17 - Step 5: Solve for x
x = 1,067,878,134,730.17/1,170,383.18 - Step 6: Final answer
x = 912,417.53
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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.