Finding the Fourth Proportional to 989,899.50, 1,365,355.58 and 908,490.18
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Solution
The fourth proportional to 989,899.50, 1,365,355.58 and 908,490.18 is: 1,253,068.76
Step by Step Solution
- Step 1: Write the proportion equation
989,899.50 : 1,365,355.58 = 908,490.18 : x - Step 2: Convert to fraction form
989,899.50/1,365,355.58 = 908,490.18/x - Step 3: Cross multiply
989,899.50x = 1,365,355.58 × 908,490.18 - Step 4: Simplify right side
989,899.50x = 1,240,412,136,638.20 - Step 5: Solve for x
x = 1,240,412,136,638.20/989,899.50 - Step 6: Final answer
x = 1,253,068.76
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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.