Finding the Fourth Proportional to 986,644.10, 1,479,966.15 and 717,643.10
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Solution
The fourth proportional to 986,644.10, 1,479,966.15 and 717,643.10 is: 1,076,464.65
Step by Step Solution
- Step 1: Write the proportion equation
986,644.10 : 1,479,966.15 = 717,643.10 : x - Step 2: Convert to fraction form
986,644.10/1,479,966.15 = 717,643.10/x - Step 3: Cross multiply
986,644.10x = 1,479,966.15 × 717,643.10 - Step 4: Simplify right side
986,644.10x = 1,062,087,495,781.07 - Step 5: Solve for x
x = 1,062,087,495,781.07/986,644.10 - Step 6: Final answer
x = 1,076,464.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.