Finding the Fourth Proportional to 856,747.20, 1,283,565.60 and 698,116.80
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Solution
The fourth proportional to 856,747.20, 1,283,565.60 and 698,116.80 is: 1,045,907.95
Step by Step Solution
- Step 1: Write the proportion equation
856,747.20 : 1,283,565.60 = 698,116.80 : x - Step 2: Convert to fraction form
856,747.20/1,283,565.60 = 698,116.80/x - Step 3: Cross multiply
856,747.20x = 1,283,565.60 × 698,116.80 - Step 4: Simplify right side
856,747.20x = 896,078,709,262.08 - Step 5: Solve for x
x = 896,078,709,262.08/856,747.20 - Step 6: Final answer
x = 1,045,907.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.