Finding the Fourth Proportional to 891,782.16, 1,337,871.48 and 418,215.12
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Solution
The fourth proportional to 891,782.16, 1,337,871.48 and 418,215.12 is: 627,415.65
Step by Step Solution
- Step 1: Write the proportion equation
891,782.16 : 1,337,871.48 = 418,215.12 : x - Step 2: Convert to fraction form
891,782.16/1,337,871.48 = 418,215.12/x - Step 3: Cross multiply
891,782.16x = 1,337,871.48 × 418,215.12 - Step 4: Simplify right side
891,782.16x = 559,518,081,552.78 - Step 5: Solve for x
x = 559,518,081,552.78/891,782.16 - Step 6: Final answer
x = 627,415.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.