Finding the Fourth Proportional to 1,430,135.64, 1,971,969.84 and 913,209.84
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Solution
The fourth proportional to 1,430,135.64, 1,971,969.84 and 913,209.84 is: 1,259,196.83
Step by Step Solution
- Step 1: Write the proportion equation
1,430,135.64 : 1,971,969.84 = 913,209.84 : x - Step 2: Convert to fraction form
1,430,135.64/1,971,969.84 = 913,209.84/x - Step 3: Cross multiply
1,430,135.64x = 1,971,969.84 × 913,209.84 - Step 4: Simplify right side
1,430,135.64x = 1,800,822,262,071.23 - Step 5: Solve for x
x = 1,800,822,262,071.23/1,430,135.64 - Step 6: Final answer
x = 1,259,196.83
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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.