Finding the Fourth Proportional to 1,698,905.70, 2,548,358.55 and 688,511.70
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Solution
The fourth proportional to 1,698,905.70, 2,548,358.55 and 688,511.70 is: 1,032,767.55
Step by Step Solution
- Step 1: Write the proportion equation
1,698,905.70 : 2,548,358.55 = 688,511.70 : x - Step 2: Convert to fraction form
1,698,905.70/2,548,358.55 = 688,511.70/x - Step 3: Cross multiply
1,698,905.70x = 2,548,358.55 × 688,511.70 - Step 4: Simplify right side
1,698,905.70x = 1,754,574,677,470.03 - Step 5: Solve for x
x = 1,754,574,677,470.03/1,698,905.70 - Step 6: Final answer
x = 1,032,767.55
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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.