Finding the Fourth Proportional to 778,474.80, 1,167,303.35 and 351,642.87
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Solution
The fourth proportional to 778,474.80, 1,167,303.35 and 351,642.87 is: 527,279.63
Step by Step Solution
- Step 1: Write the proportion equation
778,474.80 : 1,167,303.35 = 351,642.87 : x - Step 2: Convert to fraction form
778,474.80/1,167,303.35 = 351,642.87/x - Step 3: Cross multiply
778,474.80x = 1,167,303.35 × 351,642.87 - Step 4: Simplify right side
778,474.80x = 410,473,901,033.72 - Step 5: Solve for x
x = 410,473,901,033.72/778,474.80 - Step 6: Final answer
x = 527,279.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.