Finding the Fourth Proportional to 724,368.24, 999,521.60 and 402,080.80
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Solution
The fourth proportional to 724,368.24, 999,521.60 and 402,080.80 is: 554,812.35
Step by Step Solution
- Step 1: Write the proportion equation
724,368.24 : 999,521.60 = 402,080.80 : x - Step 2: Convert to fraction form
724,368.24/999,521.60 = 402,080.80/x - Step 3: Cross multiply
724,368.24x = 999,521.60 × 402,080.80 - Step 4: Simplify right side
724,368.24x = 401,888,444,545.28 - Step 5: Solve for x
x = 401,888,444,545.28/724,368.24 - Step 6: Final answer
x = 554,812.35
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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.