Finding the Fourth Proportional to 1,130,977.75, 1,560,749.30 and 647,702.79
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Solution
The fourth proportional to 1,130,977.75, 1,560,749.30 and 647,702.79 is: 893,829.85
Step by Step Solution
- Step 1: Write the proportion equation
1,130,977.75 : 1,560,749.30 = 647,702.79 : x - Step 2: Convert to fraction form
1,130,977.75/1,560,749.30 = 647,702.79/x - Step 3: Cross multiply
1,130,977.75x = 1,560,749.30 × 647,702.79 - Step 4: Simplify right side
1,130,977.75x = 1,010,901,676,100.55 - Step 5: Solve for x
x = 1,010,901,676,100.55/1,130,977.75 - Step 6: Final answer
x = 893,829.85
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1.5x scale
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.