Finding the Fourth Proportional to 2,122,756.23, 2,929,438.53 and 1,155,905.40
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Solution
The fourth proportional to 2,122,756.23, 2,929,438.53 and 1,155,905.40 is: 1,595,168.47
Step by Step Solution
- Step 1: Write the proportion equation
2,122,756.23 : 2,929,438.53 = 1,155,905.40 : x - Step 2: Convert to fraction form
2,122,756.23/2,929,438.53 = 1,155,905.40/x - Step 3: Cross multiply
2,122,756.23x = 2,929,438.53 × 1,155,905.40 - Step 4: Simplify right side
2,122,756.23x = 3,386,153,815,795.06 - Step 5: Solve for x
x = 3,386,153,815,795.06/2,122,756.23 - Step 6: Final answer
x = 1,595,168.47
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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.