Finding the Fourth Proportional to 868,972.56, 1,199,115.99 and 486,925.53
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Solution
The fourth proportional to 868,972.56, 1,199,115.99 and 486,925.53 is: 671,920.17
Step by Step Solution
- Step 1: Write the proportion equation
868,972.56 : 1,199,115.99 = 486,925.53 : x - Step 2: Convert to fraction form
868,972.56/1,199,115.99 = 486,925.53/x - Step 3: Cross multiply
868,972.56x = 1,199,115.99 × 486,925.53 - Step 4: Simplify right side
868,972.56x = 583,880,188,962.23 - Step 5: Solve for x
x = 583,880,188,962.23/868,972.56 - Step 6: Final answer
x = 671,920.17
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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.