Finding the Fourth Proportional to 1,070,590.20, 1,606,101.30 and 312,430.20
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Solution
The fourth proportional to 1,070,590.20, 1,606,101.30 and 312,430.20 is: 468,708.34
Step by Step Solution
- Step 1: Write the proportion equation
1,070,590.20 : 1,606,101.30 = 312,430.20 : x - Step 2: Convert to fraction form
1,070,590.20/1,606,101.30 = 312,430.20/x - Step 3: Cross multiply
1,070,590.20x = 1,606,101.30 × 312,430.20 - Step 4: Simplify right side
1,070,590.20x = 501,794,550,379.26 - Step 5: Solve for x
x = 501,794,550,379.26/1,070,590.20 - Step 6: Final answer
x = 468,708.34
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1.5x scale
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.