Finding the Fourth Proportional to 838,430.10, 1,157,054.34 and 456,477.84
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Solution
The fourth proportional to 838,430.10, 1,157,054.34 and 456,477.84 is: 629,950.74
Step by Step Solution
- Step 1: Write the proportion equation
838,430.10 : 1,157,054.34 = 456,477.84 : x - Step 2: Convert to fraction form
838,430.10/1,157,054.34 = 456,477.84/x - Step 3: Cross multiply
838,430.10x = 1,157,054.34 × 456,477.84 - Step 4: Simplify right side
838,430.10x = 528,169,665,885.83 - Step 5: Solve for x
x = 528,169,665,885.83/838,430.10 - Step 6: Final answer
x = 629,950.74
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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.