Finding the Fourth Proportional to 611,363.20, 917,044.80 and 471,395.20
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Solution
The fourth proportional to 611,363.20, 917,044.80 and 471,395.20 is: 707,092.80
Step by Step Solution
- Step 1: Write the proportion equation
611,363.20 : 917,044.80 = 471,395.20 : x - Step 2: Convert to fraction form
611,363.20/917,044.80 = 471,395.20/x - Step 3: Cross multiply
611,363.20x = 917,044.80 × 471,395.20 - Step 4: Simplify right side
611,363.20x = 432,290,516,904.96 - Step 5: Solve for x
x = 432,290,516,904.96/611,363.20 - Step 6: Final answer
x = 707,092.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.