Finding the Fourth Proportional to 1,553,440.92, 2,329,078.41 and 688,404.80
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Solution
The fourth proportional to 1,553,440.92, 2,329,078.41 and 688,404.80 is: 1,032,127.28
Step by Step Solution
- Step 1: Write the proportion equation
1,553,440.92 : 2,329,078.41 = 688,404.80 : x - Step 2: Convert to fraction form
1,553,440.92/2,329,078.41 = 688,404.80/x - Step 3: Cross multiply
1,553,440.92x = 2,329,078.41 × 688,404.80 - Step 4: Simplify right side
1,553,440.92x = 1,603,348,745,374.98 - Step 5: Solve for x
x = 1,603,348,745,374.98/1,553,440.92 - Step 6: Final answer
x = 1,032,127.28
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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.