Finding the Fourth Proportional to 1,057,207.80, 1,585,811.70 and 488,587.80
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Solution
The fourth proportional to 1,057,207.80, 1,585,811.70 and 488,587.80 is: 732,881.70
Step by Step Solution
- Step 1: Write the proportion equation
1,057,207.80 : 1,585,811.70 = 488,587.80 : x - Step 2: Convert to fraction form
1,057,207.80/1,585,811.70 = 488,587.80/x - Step 3: Cross multiply
1,057,207.80x = 1,585,811.70 × 488,587.80 - Step 4: Simplify right side
1,057,207.80x = 774,808,249,717.26 - Step 5: Solve for x
x = 774,808,249,717.26/1,057,207.80 - Step 6: Final answer
x = 732,881.70
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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.