Finding the Fourth Proportional to 671,495.74, 1,006,569.86 and 311,918.99
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Solution
The fourth proportional to 671,495.74, 1,006,569.86 and 311,918.99 is: 467,565.51
Step by Step Solution
- Step 1: Write the proportion equation
671,495.74 : 1,006,569.86 = 311,918.99 : x - Step 2: Convert to fraction form
671,495.74/1,006,569.86 = 311,918.99/x - Step 3: Cross multiply
671,495.74x = 1,006,569.86 × 311,918.99 - Step 4: Simplify right side
671,495.74x = 313,968,247,503.20 - Step 5: Solve for x
x = 313,968,247,503.20/671,495.74 - Step 6: Final answer
x = 467,565.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.