Finding the Fourth Proportional to 1,080,439.36, 1,489,228.14 and 766,216.08
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Solution
The fourth proportional to 1,080,439.36, 1,489,228.14 and 766,216.08 is: 1,056,117.16
Step by Step Solution
- Step 1: Write the proportion equation
1,080,439.36 : 1,489,228.14 = 766,216.08 : x - Step 2: Convert to fraction form
1,080,439.36/1,489,228.14 = 766,216.08/x - Step 3: Cross multiply
1,080,439.36x = 1,489,228.14 × 766,216.08 - Step 4: Simplify right side
1,080,439.36x = 1,141,070,547,656.49 - Step 5: Solve for x
x = 1,141,070,547,656.49/1,080,439.36 - Step 6: Final answer
x = 1,056,117.16
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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.