Finding the Fourth Proportional to 1,604,430.87, 2,214,139.10 and 879,272.70
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Solution
The fourth proportional to 1,604,430.87, 2,214,139.10 and 879,272.70 is: 1,213,409.75
Step by Step Solution
- Step 1: Write the proportion equation
1,604,430.87 : 2,214,139.10 = 879,272.70 : x - Step 2: Convert to fraction form
1,604,430.87/2,214,139.10 = 879,272.70/x - Step 3: Cross multiply
1,604,430.87x = 2,214,139.10 × 879,272.70 - Step 4: Simplify right side
1,604,430.87x = 1,946,832,064,632.57 - Step 5: Solve for x
x = 1,946,832,064,632.57/1,604,430.87 - Step 6: Final answer
x = 1,213,409.75
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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.