Finding the Fourth Proportional to 817,764.96, 1,128,515.76 and 455,181.12
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Solution
The fourth proportional to 817,764.96, 1,128,515.76 and 455,181.12 is: 628,150.01
Step by Step Solution
- Step 1: Write the proportion equation
817,764.96 : 1,128,515.76 = 455,181.12 : x - Step 2: Convert to fraction form
817,764.96/1,128,515.76 = 455,181.12/x - Step 3: Cross multiply
817,764.96x = 1,128,515.76 × 455,181.12 - Step 4: Simplify right side
817,764.96x = 513,679,067,574.45 - Step 5: Solve for x
x = 513,679,067,574.45/817,764.96 - Step 6: Final answer
x = 628,150.01
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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.