Finding the Fourth Proportional to 877,507.84, 1,211,381.86 and 555,374.08
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Solution
The fourth proportional to 877,507.84, 1,211,381.86 and 555,374.08 is: 766,682.71
Step by Step Solution
- Step 1: Write the proportion equation
877,507.84 : 1,211,381.86 = 555,374.08 : x - Step 2: Convert to fraction form
877,507.84/1,211,381.86 = 555,374.08/x - Step 3: Cross multiply
877,507.84x = 1,211,381.86 × 555,374.08 - Step 4: Simplify right side
877,507.84x = 672,770,086,026.19 - Step 5: Solve for x
x = 672,770,086,026.19/877,507.84 - Step 6: Final answer
x = 766,682.71
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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.