Finding the Fourth Proportional to 1,423,386.60, 2,134,388.70 and 791,629.80
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Solution
The fourth proportional to 1,423,386.60, 2,134,388.70 and 791,629.80 is: 1,187,060.28
Step by Step Solution
- Step 1: Write the proportion equation
1,423,386.60 : 2,134,388.70 = 791,629.80 : x - Step 2: Convert to fraction form
1,423,386.60/2,134,388.70 = 791,629.80/x - Step 3: Cross multiply
1,423,386.60x = 2,134,388.70 × 791,629.80 - Step 4: Simplify right side
1,423,386.60x = 1,689,645,699,703.26 - Step 5: Solve for x
x = 1,689,645,699,703.26/1,423,386.60 - Step 6: Final answer
x = 1,187,060.28
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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.