Finding the Fourth Proportional to 2,130,028.71, 2,939,437.06 and 1,259,177.27
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Solution
The fourth proportional to 2,130,028.71, 2,939,437.06 and 1,259,177.27 is: 1,737,663.12
Step by Step Solution
- Step 1: Write the proportion equation
2,130,028.71 : 2,939,437.06 = 1,259,177.27 : x - Step 2: Convert to fraction form
2,130,028.71/2,939,437.06 = 1,259,177.27/x - Step 3: Cross multiply
2,130,028.71x = 2,939,437.06 × 1,259,177.27 - Step 4: Simplify right side
2,130,028.71x = 3,701,272,332,547.63 - Step 5: Solve for x
x = 3,701,272,332,547.63/2,130,028.71 - Step 6: Final answer
x = 1,737,663.12
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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.