Finding the Fourth Proportional to 880,959.12, 1,215,515.34 and 518,398.80
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Solution
The fourth proportional to 880,959.12, 1,215,515.34 and 518,398.80 is: 715,267.80
Step by Step Solution
- Step 1: Write the proportion equation
880,959.12 : 1,215,515.34 = 518,398.80 : x - Step 2: Convert to fraction form
880,959.12/1,215,515.34 = 518,398.80/x - Step 3: Cross multiply
880,959.12x = 1,215,515.34 × 518,398.80 - Step 4: Simplify right side
880,959.12x = 630,121,693,637.59 - Step 5: Solve for x
x = 630,121,693,637.59/880,959.12 - Step 6: Final answer
x = 715,267.80
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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.