Finding the Fourth Proportional to 904,578.75, 1,357,490.21 and 313,602.75
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Solution
The fourth proportional to 904,578.75, 1,357,490.21 and 313,602.75 is: 470,619.79
Step by Step Solution
- Step 1: Write the proportion equation
904,578.75 : 1,357,490.21 = 313,602.75 : x - Step 2: Convert to fraction form
904,578.75/1,357,490.21 = 313,602.75/x - Step 3: Cross multiply
904,578.75x = 1,357,490.21 × 313,602.75 - Step 4: Simplify right side
904,578.75x = 425,712,661,386.06 - Step 5: Solve for x
x = 425,712,661,386.06/904,578.75 - Step 6: Final answer
x = 470,619.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.