Finding the Fourth Proportional to 472,983.70, 709,475.55 and 465,207.70
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Solution
The fourth proportional to 472,983.70, 709,475.55 and 465,207.70 is: 697,811.55
Step by Step Solution
- Step 1: Write the proportion equation
472,983.70 : 709,475.55 = 465,207.70 : x - Step 2: Convert to fraction form
472,983.70/709,475.55 = 465,207.70/x - Step 3: Cross multiply
472,983.70x = 709,475.55 × 465,207.70 - Step 4: Simplify right side
472,983.70x = 330,053,488,821.74 - Step 5: Solve for x
x = 330,053,488,821.74/472,983.70 - Step 6: Final answer
x = 697,811.55
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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.