Finding the Fourth Proportional to 840,457.12, 1,159,828.41 and 458,481.18
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Solution
The fourth proportional to 840,457.12, 1,159,828.41 and 458,481.18 is: 632,702.71
Step by Step Solution
- Step 1: Write the proportion equation
840,457.12 : 1,159,828.41 = 458,481.18 : x - Step 2: Convert to fraction form
840,457.12/1,159,828.41 = 458,481.18/x - Step 3: Cross multiply
840,457.12x = 1,159,828.41 × 458,481.18 - Step 4: Simplify right side
840,457.12x = 531,759,498,014.32 - Step 5: Solve for x
x = 531,759,498,014.32/840,457.12 - Step 6: Final answer
x = 632,702.71
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.