Finding the Fourth Proportional to 753,564.84, 1,039,938.62 and 409,397.33
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Solution
The fourth proportional to 753,564.84, 1,039,938.62 and 409,397.33 is: 564,978.70
Step by Step Solution
- Step 1: Write the proportion equation
753,564.84 : 1,039,938.62 = 409,397.33 : x - Step 2: Convert to fraction form
753,564.84/1,039,938.62 = 409,397.33/x - Step 3: Cross multiply
753,564.84x = 1,039,938.62 × 409,397.33 - Step 4: Simplify right side
753,564.84x = 425,748,087,145.21 - Step 5: Solve for x
x = 425,748,087,145.21/753,564.84 - Step 6: Final answer
x = 564,978.70
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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.