Finding the Fourth Proportional to 771,398.37, 1,152,406.56 and 499,310.06
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Solution
The fourth proportional to 771,398.37, 1,152,406.56 and 499,310.06 is: 745,928.70
Step by Step Solution
- Step 1: Write the proportion equation
771,398.37 : 1,152,406.56 = 499,310.06 : x - Step 2: Convert to fraction form
771,398.37/1,152,406.56 = 499,310.06/x - Step 3: Cross multiply
771,398.37x = 1,152,406.56 × 499,310.06 - Step 4: Simplify right side
771,398.37x = 575,408,182,855.96 - Step 5: Solve for x
x = 575,408,182,855.96/771,398.37 - Step 6: Final answer
x = 745,928.70
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.