Finding the Fourth Proportional to 840,374.64, 1,159,698.20 and 458,415.09
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Solution
The fourth proportional to 840,374.64, 1,159,698.20 and 458,415.09 is: 632,602.56
Step by Step Solution
- Step 1: Write the proportion equation
840,374.64 : 1,159,698.20 = 458,415.09 : x - Step 2: Convert to fraction form
840,374.64/1,159,698.20 = 458,415.09/x - Step 3: Cross multiply
840,374.64x = 1,159,698.20 × 458,415.09 - Step 4: Simplify right side
840,374.64x = 531,623,152,433.76 - Step 5: Solve for x
x = 531,623,152,433.76/840,374.64 - Step 6: Final answer
x = 632,602.56
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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.