Finding the Fourth Proportional to 724,323.99, 999,655.68 and 402,137.88
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Solution
The fourth proportional to 724,323.99, 999,655.68 and 402,137.88 is: 554,999.45
Step by Step Solution
- Step 1: Write the proportion equation
724,323.99 : 999,655.68 = 402,137.88 : x - Step 2: Convert to fraction form
724,323.99/999,655.68 = 402,137.88/x - Step 3: Cross multiply
724,323.99x = 999,655.68 × 402,137.88 - Step 4: Simplify right side
724,323.99x = 401,999,413,874.47 - Step 5: Solve for x
x = 401,999,413,874.47/724,323.99 - Step 6: Final answer
x = 554,999.45
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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.