Finding the Fourth Proportional to 567,195.21, 782,746.11 and 312,562.80
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Solution
The fourth proportional to 567,195.21, 782,746.11 and 312,562.80 is: 431,345.88
Step by Step Solution
- Step 1: Write the proportion equation
567,195.21 : 782,746.11 = 312,562.80 : x - Step 2: Convert to fraction form
567,195.21/782,746.11 = 312,562.80/x - Step 3: Cross multiply
567,195.21x = 782,746.11 × 312,562.80 - Step 4: Simplify right side
567,195.21x = 244,657,315,830.71 - Step 5: Solve for x
x = 244,657,315,830.71/567,195.21 - Step 6: Final answer
x = 431,345.88
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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.