Finding the Fourth Proportional to 1,255,488.36, 1,730,947.68 and 813,175.96
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Solution
The fourth proportional to 1,255,488.36, 1,730,947.68 and 813,175.96 is: 1,121,129.50
Step by Step Solution
- Step 1: Write the proportion equation
1,255,488.36 : 1,730,947.68 = 813,175.96 : x - Step 2: Convert to fraction form
1,255,488.36/1,730,947.68 = 813,175.96/x - Step 3: Cross multiply
1,255,488.36x = 1,730,947.68 × 813,175.96 - Step 4: Simplify right side
1,255,488.36x = 1,407,565,041,393.77 - Step 5: Solve for x
x = 1,407,565,041,393.77/1,255,488.36 - Step 6: Final answer
x = 1,121,129.50
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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.