Finding the Fourth Proportional to 724,581.68, 999,876.44 and 402,291.68
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Solution
The fourth proportional to 724,581.68, 999,876.44 and 402,291.68 is: 555,136.82
Step by Step Solution
- Step 1: Write the proportion equation
724,581.68 : 999,876.44 = 402,291.68 : x - Step 2: Convert to fraction form
724,581.68/999,876.44 = 402,291.68/x - Step 3: Cross multiply
724,581.68x = 999,876.44 × 402,291.68 - Step 4: Simplify right side
724,581.68x = 402,241,972,840.02 - Step 5: Solve for x
x = 402,241,972,840.02/724,581.68 - Step 6: Final answer
x = 555,136.82
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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.