Finding the Fourth Proportional to 1,703,613.40, 2,555,420.10 and 1,565,987.80
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Solution
The fourth proportional to 1,703,613.40, 2,555,420.10 and 1,565,987.80 is: 2,348,981.70
Step by Step Solution
- Step 1: Write the proportion equation
1,703,613.40 : 2,555,420.10 = 1,565,987.80 : x - Step 2: Convert to fraction form
1,703,613.40/2,555,420.10 = 1,565,987.80/x - Step 3: Cross multiply
1,703,613.40x = 2,555,420.10 × 1,565,987.80 - Step 4: Simplify right side
1,703,613.40x = 4,001,756,700,474.78 - Step 5: Solve for x
x = 4,001,756,700,474.78/1,703,613.40 - Step 6: Final answer
x = 2,348,981.70
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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.