Finding the Fourth Proportional to 724,744.08, 999,985.80 and 438,258.16
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Solution
The fourth proportional to 724,744.08, 999,985.80 and 438,258.16 is: 604,698.88
Step by Step Solution
- Step 1: Write the proportion equation
724,744.08 : 999,985.80 = 438,258.16 : x - Step 2: Convert to fraction form
724,744.08/999,985.80 = 438,258.16/x - Step 3: Cross multiply
724,744.08x = 999,985.80 × 438,258.16 - Step 4: Simplify right side
724,744.08x = 438,251,936,734.13 - Step 5: Solve for x
x = 438,251,936,734.13/724,744.08 - Step 6: Final answer
x = 604,698.88
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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.