Finding the Fourth Proportional to 659,862.18, 989,781.12 and 210,579.48
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Solution
The fourth proportional to 659,862.18, 989,781.12 and 210,579.48 is: 315,865.34
Step by Step Solution
- Step 1: Write the proportion equation
659,862.18 : 989,781.12 = 210,579.48 : x - Step 2: Convert to fraction form
659,862.18/989,781.12 = 210,579.48/x - Step 3: Cross multiply
659,862.18x = 989,781.12 × 210,579.48 - Step 4: Simplify right side
659,862.18x = 208,427,593,563.42 - Step 5: Solve for x
x = 208,427,593,563.42/659,862.18 - Step 6: Final answer
x = 315,865.34
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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.