Finding the Fourth Proportional to 1,642,781.54, 2,266,972.16 and 917,617.70
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Solution
The fourth proportional to 1,642,781.54, 2,266,972.16 and 917,617.70 is: 1,266,275.36
Step by Step Solution
- Step 1: Write the proportion equation
1,642,781.54 : 2,266,972.16 = 917,617.70 : x - Step 2: Convert to fraction form
1,642,781.54/2,266,972.16 = 917,617.70/x - Step 3: Cross multiply
1,642,781.54x = 2,266,972.16 × 917,617.70 - Step 4: Simplify right side
1,642,781.54x = 2,080,213,779,423.23 - Step 5: Solve for x
x = 2,080,213,779,423.23/1,642,781.54 - Step 6: Final answer
x = 1,266,275.36
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.