Finding the Fourth Proportional to 857,539.13, 1,183,405.68 and 470,357.70
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Solution
The fourth proportional to 857,539.13, 1,183,405.68 and 470,357.70 is: 649,094.55
Step by Step Solution
- Step 1: Write the proportion equation
857,539.13 : 1,183,405.68 = 470,357.70 : x - Step 2: Convert to fraction form
857,539.13/1,183,405.68 = 470,357.70/x - Step 3: Cross multiply
857,539.13x = 1,183,405.68 × 470,357.70 - Step 4: Simplify right side
857,539.13x = 556,623,973,811.74 - Step 5: Solve for x
x = 556,623,973,811.74/857,539.13 - Step 6: Final answer
x = 649,094.55
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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.