Finding the Fourth Proportional to 1,434,886.13, 1,980,232.70 and 790,306.08
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Solution
The fourth proportional to 1,434,886.13, 1,980,232.70 and 790,306.08 is: 1,090,671.87
Step by Step Solution
- Step 1: Write the proportion equation
1,434,886.13 : 1,980,232.70 = 790,306.08 : x - Step 2: Convert to fraction form
1,434,886.13/1,980,232.70 = 790,306.08/x - Step 3: Cross multiply
1,434,886.13x = 1,980,232.70 × 790,306.08 - Step 4: Simplify right side
1,434,886.13x = 1,564,989,938,673.29 - Step 5: Solve for x
x = 1,564,989,938,673.29/1,434,886.13 - Step 6: Final answer
x = 1,090,671.87
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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.