Finding the Fourth Proportional to 3,938,824, 5,908,237.80 and 1,243,422.28
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Solution
The fourth proportional to 3,938,824, 5,908,237.80 and 1,243,422.28 is: 1,865,133.99
Step by Step Solution
- Step 1: Write the proportion equation
3,938,824 : 5,908,237.80 = 1,243,422.28 : x - Step 2: Convert to fraction form
3,938,824/5,908,237.80 = 1,243,422.28/x - Step 3: Cross multiply
3,938,824x = 5,908,237.80 × 1,243,422.28 - Step 4: Simplify right side
3,938,824x = 7,346,434,516,058.18 - Step 5: Solve for x
x = 7,346,434,516,058.18/3,938,824 - Step 6: Final answer
x = 1,865,133.99
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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.