Finding the Fourth Proportional to 1,490,752.32, 2,057,275.20 and 811,726.08
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Solution
The fourth proportional to 1,490,752.32, 2,057,275.20 and 811,726.08 is: 1,120,202.14
Step by Step Solution
- Step 1: Write the proportion equation
1,490,752.32 : 2,057,275.20 = 811,726.08 : x - Step 2: Convert to fraction form
1,490,752.32/2,057,275.20 = 811,726.08/x - Step 3: Cross multiply
1,490,752.32x = 2,057,275.20 × 811,726.08 - Step 4: Simplify right side
1,490,752.32x = 1,669,943,933,577.22 - Step 5: Solve for x
x = 1,669,943,933,577.22/1,490,752.32 - Step 6: Final answer
x = 1,120,202.14
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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.