Finding the Fourth Proportional to 781,537.74, 1,078,235.55 and 475,488.78
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Solution
The fourth proportional to 781,537.74, 1,078,235.55 and 475,488.78 is: 656,000.19
Step by Step Solution
- Step 1: Write the proportion equation
781,537.74 : 1,078,235.55 = 475,488.78 : x - Step 2: Convert to fraction form
781,537.74/1,078,235.55 = 475,488.78/x - Step 3: Cross multiply
781,537.74x = 1,078,235.55 × 475,488.78 - Step 4: Simplify right side
781,537.74x = 512,688,906,222.13 - Step 5: Solve for x
x = 512,688,906,222.13/781,537.74 - Step 6: Final answer
x = 656,000.19
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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.