Finding the Fourth Proportional to 900,176.76, 1,242,237.06 and 492,276.96
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Solution
The fourth proportional to 900,176.76, 1,242,237.06 and 492,276.96 is: 679,338.45
Step by Step Solution
- Step 1: Write the proportion equation
900,176.76 : 1,242,237.06 = 492,276.96 : x - Step 2: Convert to fraction form
900,176.76/1,242,237.06 = 492,276.96/x - Step 3: Cross multiply
900,176.76x = 1,242,237.06 × 492,276.96 - Step 4: Simplify right side
900,176.76x = 611,524,683,496.14 - Step 5: Solve for x
x = 611,524,683,496.14/900,176.76 - Step 6: Final answer
x = 679,338.45
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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.