Finding the Fourth Proportional to 1,916,136.84, 2,644,216.74 and 1,056,681.48
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Solution
The fourth proportional to 1,916,136.84, 2,644,216.74 and 1,056,681.48 is: 1,458,191.71
Step by Step Solution
- Step 1: Write the proportion equation
1,916,136.84 : 2,644,216.74 = 1,056,681.48 : x - Step 2: Convert to fraction form
1,916,136.84/2,644,216.74 = 1,056,681.48/x - Step 3: Cross multiply
1,916,136.84x = 2,644,216.74 × 1,056,681.48 - Step 4: Simplify right side
1,916,136.84x = 2,794,094,858,263.98 - Step 5: Solve for x
x = 2,794,094,858,263.98/1,916,136.84 - Step 6: Final answer
x = 1,458,191.71
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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.