Finding the Fourth Proportional to 840,405.51, 1,159,767.99 and 458,440.29
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Solution
The fourth proportional to 840,405.51, 1,159,767.99 and 458,440.29 is: 632,652.17
Step by Step Solution
- Step 1: Write the proportion equation
840,405.51 : 1,159,767.99 = 458,440.29 : x - Step 2: Convert to fraction form
840,405.51/1,159,767.99 = 458,440.29/x - Step 3: Cross multiply
840,405.51x = 1,159,767.99 × 458,440.29 - Step 4: Simplify right side
840,405.51x = 531,684,373,668.32 - Step 5: Solve for x
x = 531,684,373,668.32/840,405.51 - Step 6: Final answer
x = 632,652.17
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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.