Finding the Fourth Proportional to 963,416.55, 1,326,481.58 and 817,934.58
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Solution
The fourth proportional to 963,416.55, 1,326,481.58 and 817,934.58 is: 1,126,174.50
Step by Step Solution
- Step 1: Write the proportion equation
963,416.55 : 1,326,481.58 = 817,934.58 : x - Step 2: Convert to fraction form
963,416.55/1,326,481.58 = 817,934.58/x - Step 3: Cross multiply
963,416.55x = 1,326,481.58 × 817,934.58 - Step 4: Simplify right side
963,416.55x = 1,084,975,149,427.46 - Step 5: Solve for x
x = 1,084,975,149,427.46/963,416.55 - Step 6: Final answer
x = 1,126,174.50
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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.