Finding the Fourth Proportional to 771,160.14, 1,064,206.35 and 449,058.06
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Solution
The fourth proportional to 771,160.14, 1,064,206.35 and 449,058.06 is: 619,703.24
Step by Step Solution
- Step 1: Write the proportion equation
771,160.14 : 1,064,206.35 = 449,058.06 : x - Step 2: Convert to fraction form
771,160.14/1,064,206.35 = 449,058.06/x - Step 3: Cross multiply
771,160.14x = 1,064,206.35 × 449,058.06 - Step 4: Simplify right side
771,160.14x = 477,890,438,970.68 - Step 5: Solve for x
x = 477,890,438,970.68/771,160.14 - Step 6: Final answer
x = 619,703.24
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1.5x scale
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.