Finding the Fourth Proportional to 989,865.10, 1,487,908.05 and 971,202.70
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Solution
The fourth proportional to 989,865.10, 1,487,908.05 and 971,202.70 is: 1,459,855.81
Step by Step Solution
- Step 1: Write the proportion equation
989,865.10 : 1,487,908.05 = 971,202.70 : x - Step 2: Convert to fraction form
989,865.10/1,487,908.05 = 971,202.70/x - Step 3: Cross multiply
989,865.10x = 1,487,908.05 × 971,202.70 - Step 4: Simplify right side
989,865.10x = 1,445,060,315,511.74 - Step 5: Solve for x
x = 1,445,060,315,511.74/989,865.10 - Step 6: Final answer
x = 1,459,855.81
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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.