Finding the Fourth Proportional to 1,905,246.78, 2,628,044.61 and 1,130,328.99
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Solution
The fourth proportional to 1,905,246.78, 2,628,044.61 and 1,130,328.99 is: 1,559,144.49
Step by Step Solution
- Step 1: Write the proportion equation
1,905,246.78 : 2,628,044.61 = 1,130,328.99 : x - Step 2: Convert to fraction form
1,905,246.78/2,628,044.61 = 1,130,328.99/x - Step 3: Cross multiply
1,905,246.78x = 2,628,044.61 × 1,130,328.99 - Step 4: Simplify right side
1,905,246.78x = 2,970,555,009,696.24 - Step 5: Solve for x
x = 2,970,555,009,696.24/1,905,246.78 - Step 6: Final answer
x = 1,559,144.49
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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.