Finding the Fourth Proportional to 832,840.84, 1,149,320.28 and 465,318.06
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Solution
The fourth proportional to 832,840.84, 1,149,320.28 and 465,318.06 is: 642,138.88
Step by Step Solution
- Step 1: Write the proportion equation
832,840.84 : 1,149,320.28 = 465,318.06 : x - Step 2: Convert to fraction form
832,840.84/1,149,320.28 = 465,318.06/x - Step 3: Cross multiply
832,840.84x = 1,149,320.28 × 465,318.06 - Step 4: Simplify right side
832,840.84x = 534,799,483,008.26 - Step 5: Solve for x
x = 534,799,483,008.26/832,840.84 - Step 6: Final answer
x = 642,138.88
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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.