Finding the Fourth Proportional to 1,054,578.79, 1,455,311.50 and 571,132.99
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Solution
The fourth proportional to 1,054,578.79, 1,455,311.50 and 571,132.99 is: 788,159.61
Step by Step Solution
- Step 1: Write the proportion equation
1,054,578.79 : 1,455,311.50 = 571,132.99 : x - Step 2: Convert to fraction form
1,054,578.79/1,455,311.50 = 571,132.99/x - Step 3: Cross multiply
1,054,578.79x = 1,455,311.50 × 571,132.99 - Step 4: Simplify right side
1,054,578.79x = 831,176,408,376.39 - Step 5: Solve for x
x = 831,176,408,376.39/1,054,578.79 - Step 6: Final answer
x = 788,159.61
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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.