Finding the Fourth Proportional to 879,904.13, 1,214,267.70 and 477,496.13
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Solution
The fourth proportional to 879,904.13, 1,214,267.70 and 477,496.13 is: 658,944.66
Step by Step Solution
- Step 1: Write the proportion equation
879,904.13 : 1,214,267.70 = 477,496.13 : x - Step 2: Convert to fraction form
879,904.13/1,214,267.70 = 477,496.13/x - Step 3: Cross multiply
879,904.13x = 1,214,267.70 × 477,496.13 - Step 4: Simplify right side
879,904.13x = 579,808,121,462.66 - Step 5: Solve for x
x = 579,808,121,462.66/879,904.13 - Step 6: Final answer
x = 658,944.66
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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.