Finding the Fourth Proportional to 659,267.80, 988,901.70 and 647,603.80
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Solution
The fourth proportional to 659,267.80, 988,901.70 and 647,603.80 is: 971,405.70
Step by Step Solution
- Step 1: Write the proportion equation
659,267.80 : 988,901.70 = 647,603.80 : x - Step 2: Convert to fraction form
659,267.80/988,901.70 = 647,603.80/x - Step 3: Cross multiply
659,267.80x = 988,901.70 × 647,603.80 - Step 4: Simplify right side
659,267.80x = 640,416,498,746.46 - Step 5: Solve for x
x = 640,416,498,746.46/659,267.80 - Step 6: Final answer
x = 971,405.70
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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.