Finding the Fourth Proportional to 980,515.72, 1,352,901.78 and 572,432.68
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Solution
The fourth proportional to 980,515.72, 1,352,901.78 and 572,432.68 is: 789,834.55
Step by Step Solution
- Step 1: Write the proportion equation
980,515.72 : 1,352,901.78 = 572,432.68 : x - Step 2: Convert to fraction form
980,515.72/1,352,901.78 = 572,432.68/x - Step 3: Cross multiply
980,515.72x = 1,352,901.78 × 572,432.68 - Step 4: Simplify right side
980,515.72x = 774,445,191,702.17 - Step 5: Solve for x
x = 774,445,191,702.17/980,515.72 - Step 6: Final answer
x = 789,834.55
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.