Finding the Fourth Proportional to 2,129,646.90, 2,938,566.09 and 1,258,360.45
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Solution
The fourth proportional to 2,129,646.90, 2,938,566.09 and 1,258,360.45 is: 1,736,332.60
Step by Step Solution
- Step 1: Write the proportion equation
2,129,646.90 : 2,938,566.09 = 1,258,360.45 : x - Step 2: Convert to fraction form
2,129,646.90/2,938,566.09 = 1,258,360.45/x - Step 3: Cross multiply
2,129,646.90x = 2,938,566.09 × 1,258,360.45 - Step 4: Simplify right side
2,129,646.90x = 3,697,775,347,367.14 - Step 5: Solve for x
x = 3,697,775,347,367.14/2,129,646.90 - Step 6: Final answer
x = 1,736,332.60
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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.